¥141.95
【预订】Open Source for the Enterprise: Managing Risks 美国库房发货，通常付款后3-5周到货！
¥227.00
【预订】Open Source, Free Software E Open Format Nei Processi Di 美国库房发货，通常付款后3-5周到货！
¥272.00
【预订】Open Source Knowledge Management 9783540330769 美国库房发货，通常付款后3-5周到货！
¥306.00
【预订】Open Source Software: Comparing Productivity 美国库房发货，通常付款后3-5周到货！
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【预订】Open Source Messaging Application Development: 美国库房发货，通常付款后3-5周到货！
¥349.00
Open Source Intelligence Methods and Tools 9781484232125
Product Details 基本信息 ISBN-13 书号 9781484232125 Author 作者 Nihad A. Hassan New York USA Pages Number 页数 354页 Publisher 出版社 Publication Date 出版日期 20180701 Product Dimensions 商品尺寸 25.4 x 17.8 x 2 cm
¥351.00
【预售 按需印刷】Open Source Intelligence in a Networked World 北京发货，付款后10天内发货
¥377.47
【预订】Open Source E-mail Security 美国库房发货，通常付款后3-5周到货！
¥375.00
[预定]Open Source Intelligence in a Networked World 预订图书 国外库房直发 下订后 60日内发货
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¥398.90
【中商原版】Open Source Intelligence Analysis 开源情报分析
¥401.47
【预订】Open Source Systems 9783030208820 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783030208820 Author 作者 Francis Bordeleau Format 版本 精装 Pages Number 页数 173页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2019-05-23 Language 语种 英语 Book Contents 内容简介 This open access book constitutes the refereed proceedings of the 15th IFIP WG 2.13 International Conference on Open Source Systems, OSS 2019, held in Montreal, Quebec, Canada, in May 2019.The 10 revised full papers and 5 short papers presented were carefully reviewed and selected from 35 submissions. The paperscover a wide range of topics in the field of free/libre open source software (FLOSS) and areorganized in the following thematic sections: mining OSS data; organizational aspects of FLOSS projects; FLOSS adoption; FLOSS cost and licenses; and FLOSS education and training.
¥854.00
【预订】Open Source Data Warehousing and Business Intelligence 9 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9781138374225 Format 版本 平装-胶订 Pages Number 页数 432页 Publication Date 出版日期 2018-09-28 Language 语种 英语 Book Contents 内容简介 Examining implementation in terms of the systems development life cycle, this book highlights the practical aspects of implementing and using open-source data warehousing and business intelligence technologies. The text explains the key differences between open source, vendor data warehousing, and business intelligence technologies and provides end-to-end solutions that are scalable, high performance, and stable. It covers data warehouse design, real-time processing, data integration, presentation services, and real-time reporting. Emphasizing how they can be used in real-world applications, the author also presents best practices that can save time, effort, cost, and resources.
¥773.00
【预订】Open Source Intelligence Investigation 9783319476704 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783319476704 Author 作者 Akhgar Format 版本 精装 Pages Number 页数 304页 Publisher 出版社 Springer International Publishing Publication Date 出版日期 2017-01-09 Shipping Weight 商品重量 672g Language 语种 英语 Book Contents 内容简介 One of the most important aspects for a successful police operation is the ability for the police to obtain timely, reliable and actionable intelligence related to the investigation or incident at hand. Open Source Intelligence (OSINT) provides an invaluable avenue to access and collect such information in addition to traditional investigative techniques and information sources. This book offers an authoritative and accessible guide on how to conduct Open Source Intelligence investigations from data collection to analysis to the design and vetting of OSINT tools. In its pages the reader will find a comprehensive view into the ne
¥1972
【预订】Open Source GIS 9781441942067 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9781441942067 Author 作者 Markus Neteler Fondazione Edmund Mach Trento Italy Format 版本 平装-胶订 Pages Number 页数 406页 Publisher 出版社 Springer US Publication Date 出版日期 2010-10-29 Shipping Weight 商品重量 652g Language 语种 英语 Book Contents 内容简介 With this third edition of Open Source GIS: A GRASS GIS Approach, we enter the new era of GRASS6, the first release that includes substantial new code developed by the International GRASS Development Team. The dramatic growth in open source software libraries has made the GRASS6 development more efficient, and has enhanced GRASS interoperability with a wide range of open source and proprietary geospatial tools. Thoroughly updated with material related to the GRASS6, the third edition includes new sections on attribute database management and SQL support, vector networks analysis, lidar data proces
¥1643
【预订】Open Source Enterprice-Ressource-Planning (Erp) 美国库房发货，通常付款后3-5周到货！
¥718.00
【预售 按需印刷】Open Source Digital Library Movement in I
¥813.45
【预订】Open Source Und Workflow Im Unternehmen: Eine 美国库房发货，通常付款后3-5周到货！
¥847.00
【预订】Open Source Ecosystems: Diverse Communities Interacting 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783642020315 Author 作者 Cornelia Boldyreff University of Lincoln Dept. Computing an Format 版本 精装 Pages Number 页数 372页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2009-05-20 Shipping Weight 商品重量 748g Language 语种 英语 Book Contents 内容简介 Welcome to the 5th International Conference on Open Source Systems! It is quite an achievement to reach the five-year mark – that’s the sign of a successful enterprise. This annual conference is now being recognized as the primary event for the open source research community, attracting not only high-quality papers, but also building a community around a technical program, a collection of workshops, and (starting this year) a Doctoral Consortium. Reaching this milestone reflects the efforts of many people, including the conference founders, as well as the organizers and particip
¥1095
【预订】Open Source Software: Quality Verification 9783642427435 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783642427435 Author 作者 Petrinja Format 版本 平装-胶订 Pages Number 页数 277页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2015-06-19 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.6 cm Shipping Weight 商品重量 450g Language 语种 英语 Book Contents 内容简介 This book constitutes the refereed proceedings of the 9th International IFIP WG 2.13 Conference on Open Source Systems, OSS 2013, held in Koper-Capodistria, Slovenia, in June 2013. The 18 revised full papers and 3 short papers presented were carefully reviewed and selected. The papers are organized in topical sections on innovation and sustainability; practices and methods; FOSS technologies; security and open standards; and business models and licensing.
¥548.00
【预订】Open Source Systems: Long-Term Sustainability 9783642428 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783642428791 Author 作者 Hammouda Format 版本 平装-胶订 Pages Number 页数 406页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2014-10-15 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.8 cm Shipping Weight 商品重量 646g Language 语种 英语 Book Contents 内容简介 This book constitutes the refereed proceedings of the 8th International IFIP WG 2.13 Conference on Open Source Systems, OSS 2012, held in Hammamet, Tunisia, in September 2012. The 15 revised full papers presented together with 17 lightning talks, 2 tool demonstration papers, 6 short industry papers, 5 posters and 2 workshop papers were carefully reviewed and selected from 63 submissions. The papers are organized in topical sections on collaboration and forks in OSS projects, community issues, open education and peer-production models, integration and architecture, busine
¥1095
【预售 按需印刷】Open Source Software for Libraries
¥1059.95
【预订】Open Source Approaches in Spatial Data Handling 97835407 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783540748304 Author 作者 Brent Hall University of Otago School of Surveying Dunedin Format 版本 精装 Pages Number 页数 278页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2008-09-26 Shipping Weight 商品重量 608g Language 语种 英语 Book Contents 内容简介 The role open-source geospatial software plays in data handling within the spatial information technology industry is the overarching theme of the book. It also examines new tools and applications for those already using OS approaches to software development.
¥1643
【预订】Open Source Analyse Von Mehrphasigen, Kompressiblen Stro 美国库房发货，通常付款后3-5周到货！
¥1623
【预订】Open Source Systems Security Certification Y978038777323 美国库房发货，通常付款后3-5周到货！
¥1095
【预订】Open Source Software: Mobile Open Source Technologies 97 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783662515341 Author 作者 Luis Corral Free University of Bozen/Bolzano Bolzano Ital Format 版本 平装-胶订 Pages Number 页数 238页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2016-09-20 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.5 cm Shipping Weight 商品重量 394g Language 语种 英语 Book Contents 内容简介 This book constitutes the refereed proceedings of the 10th International IFIP WG 2.13 Conference on Open Source Systems, OSS 2014, held in San José, Costa Rica, in May 2014. The 16 revised full papers and 16 short papers presented together with 5 poster papers were carefully reviewed and selected from 61 submissions. They have been organized in the following topical sections: open source visualization and reporting; open source in business modeling; open source in mobile and web technologies; open source in education a
¥548.00
【预订】Open-Source Electronics Platforms: Development and Appli 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783038979722 Author 作者 Ngo Format 版本 平装-胶订 Pages Number 页数 262页 Publisher 出版社 Mdpi AG Publication Date 出版日期 1800-01-01 Product Dimensions 商品尺寸 9.6 x 6.6 x 0.7 cm Shipping Weight 商品重量 1250g Language 语种 英语
¥771.00
【预订】Open Source Intelligence Investigation 9783319837956 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783319837956 Author 作者 Babak Akhgar Sheffield Hallam University Sheffield UK Format 版本 平装-胶订 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2018-07-07 Language 语种 英语 Book Contents 内容简介 One of the most important aspects for a successful police operation is the ability for the police to obtain timely, reliable and actionable intelligence related to the investigation or incident at hand. Open Source Intelligence (OSINT) provides an invaluable avenue to access and collect such information in addition to traditional investigative techniques and information sources. This book offers an authoritative and accessible guide on how to conduct Open Source Intelligence investigations from data collection to analysis to the design and vetting of OSINT tools. In its pages the reader will find a comprehensive view into the newest methods for OSINT
¥1861
【预订】Open Source Software for Statistical Analysis of Big Dat 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9781799827696 Author 作者 Richard S. Segall Format 版本 平装-胶订 Pages Number 页数 250页 Publisher 出版社 Engineering Science Reference Publication Date 出版日期 2020-02-21 Language 语种 英语 Book Contents 内容简介 With the development of computing technologies in today’s modernized world, software packages have become easily accessible. Open source software, specifically, is a popular method for solving certain issues in the field of computer science. One key challenge is analyzing big data due to the high amounts that organizations are processing. Researchers and professionals need research on the foundations of open source software programs and how they can successfully analyze statistical data. Open Source Software for Statistical Analysis of Big Data: Emerging Research and Opportunities provides emerging research exploring the theoretical and practical aspe
¥2216
【预售 按需印刷】 Open Source Archaeology 北京直发，付款后10日内发货
¥581.00
【预售 按需印刷】Open Source Freeware E-mail to S.M.S Aler 北京发货，付款后10天内发货
¥828.00
【预订】Open Source Agriculture: Grassroots Technology in the Di 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783030293406 Author 作者 Giotitsas Format 版本 精装 Pages Number 页数 144页 Publisher 出版社 Palgrave Macmillan Publication Date 出版日期 2019-12-24 Product Dimensions 商品尺寸 8.2 x 5.8 x 0.4 cm Shipping Weight 商品重量 740g Language 语种 英语 Book Contents 内容简介 This Palgrave Pivot employs the concept of open source agriculture as a new social movement, which not only advocates a specific agenda but also creates technological products under a unique technology development model. The book brings together social movement and technology theory to examine it through two in-depth case studies of open source agricultural communities. This allows for the tracing of values and interests coded within the technological artefacts the communities produce, as well as their development processes. Critical theory of technology is further applied to examine
¥590.00
【预订】Open Source Systems: Towards Robust Practices: 13th Ifip 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783319577340 Author 作者 Zacchiroli, Stefano Format 版本 精装 Publisher 出版社 Springer Publication Date 出版日期 2017-04-23 Language 语种 英语
¥548.00
【预订】Open Source Accounting with Openerp 美国库房发货，通常付款后3-5周到货！
¥527.00
【预订】Open Source Systems: Grounding Research: 7th IFIP 美国库房发货，通常付款后3-5周到货！
¥1095
【预订】Open Source Systems Security Certification 美国库房发货，通常付款后3-5周到货！
¥1095
【预售 按需印刷】Open Source Hardware Technology 北京发货，付款后10天内发货
¥855.00
【预订】Open Source Integrated Library Systems 美国库房发货，通常付款后3-5周到货！
¥569.00
【预订】Open Source Systems: Ifip Working Group 2.13 美国库房发货，通常付款后3-5周到货！
¥1095
【预订】Open Source: Technology and Policy Y9780521707411 美国库房发货，通常付款后3-5周到货！
¥621.00
【预订】Open Source Ecosystems: Diverse Communities Interacting 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783642101892 Author 作者 Boldyreff Format 版本 平装-胶订 Pages Number 页数 372页 Publication Date 出版日期 2012-03-14 Shipping Weight 商品重量 567g Language 语种 英语 Book Contents 内容简介 Welcome to the 5th International Conference on Open Source Systems! It is quite an achievement to reach the five-year mark – that’s the sign of a successful enterprise. This annual conference is now being recognized as the primary event for the open source research community, attracting not only high-quality papers, but also building a community around a technical program, a collection of workshops, and (starting this year) a Doctoral Consortium. Reaching this milestone reflects the efforts of many people, including the conference founders, as well as the organizers and participants in the previous conferences. My task has been easy, and has been greatly aided by the hard w
¥1095
【预订】Open Source Systems: Integrating Communities 97833193922 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783319392240 Author 作者 Crowston Format 版本 精装 Pages Number 页数 209页 Publisher 出版社 Springer International Publishing Publication Date 出版日期 2016-05-14 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.5 cm Shipping Weight 商品重量 502g Language 语种 英语 Book Contents 内容简介 This book constitutes the refereed proceedings of the 12th International IFIP WG 2.13 International Conference on Open Source Systems, OSS 2016, held in Gothenburg, Sweden, in May/June 2016. The 13 revised full papers presented were carefully reviewed and selected from 38 submissions. The papers cover a wide range of topics related to free, libre, and open source software, including: organizational aspects of communities; organizational adoption; participation of women; software maintenance and evolution; open standards and open data; collaboration; hybrid communities; c
¥548.00
【预订】Open Source Approaches in Spatial Data Handling 97836420 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783642094255 Author 作者 Brent Hall University of Otago School of Surveying Dunedin Format 版本 平装-胶订 Pages Number 页数 278页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2010-11-25 Language 语种 英语 Book Contents 内容简介 The role open-source geospatial software plays in data handling within the spatial information technology industry is the overarching theme of the book. It also examines new tools and applications for those already using OS approaches to software development.
¥1643
【预订】Open Source Library Automation Software: Features 美国库房发货，通常付款后3-5周到货！
¥1056
【预订】Open Source GIS: A GRASS GIS Approach 美国库房发货，通常付款后3-5周到货！
¥1643
【预订】Open Source Cloud Computing Systems: Practices and 美国库房发货，通常付款后3-5周到货！
¥1669
【预订】Open Source Software: New Horizons 9783642132438 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783642132438 Author 作者 ?gerfalk Format 版本 精装 Pages Number 页数 438页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2010-05-10 Shipping Weight 商品重量 823g Language 语种 英语 Book Contents 内容简介 Constitutes the refereed proceedings of the 6th International IFIP WG 2.13 Conference on Open Source Systems, OSS 2010, held in Notre Dame, IN, USA, in May/June 2010.
¥1095
【预订】Open Source Systems: Adoption and Impact 9783319178363 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783319178363 Author 作者 Damiani Format 版本 精装 Pages Number 页数 181页 Publisher 出版社 Springer International Publishing Publication Date 出版日期 2015-04-30 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.5 cm Shipping Weight 商品重量 467g Language 语种 英语 Book Contents 内容简介 This book constitutes the refereed proceedings of the 11th International IFIP WG 2.13 International Conference on Open Source Systems, OSS 2015, held in Florence, Italy, in May 2015. The 16 revised full papers presented were carefully reviewed and selected from 50 submissions. They have been organized in the following topical sections: open source software engineering; communication and collaboration; examples and case studies; adoption, use, and impact; and intellectual property and legal issues. Also included is an OSS 2015 PhD contest paper.
¥548.00
【预订】Open Source Systems: Long-Term Sustainability: 8th Ifip 美国库房发货，通常付款后3-5周到货！
¥1095
【预订】Open Source for Knowledge and Learning Management: 美国库房发货，通常付款后3-5周到货！
¥855.00
【预订】Open Source Systems: 16th Ifip Wg 2.13 International Con 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783030472429 Format 版本 平装-胶订 Pages Number 页数 207页 Publisher 出版社 Springer Publication Date 出版日期 1800-01-01 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.4 cm Shipping Weight 商品重量 690g Language 语种 英语
¥548.00
【预订】Open Source Systems: Adoption and Impact 9783319369709 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783319369709 Author 作者 Ernesto Damiani Università degli Studi di Milano Crema It Format 版本 平装-胶订 Pages Number 页数 181页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2016-10-13 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.4 cm Shipping Weight 商品重量 314g Language 语种 英语 Book Contents 内容简介 This book constitutes the refereed proceedings of the 11th International IFIP WG 2.13 International Conference on Open Source Systems, OSS 2015, held in Florence, Italy, in May 2015. The 16 revised full papers presented were carefully reviewed and selected from 50 submissions. They have been organized in the following topical sections: open source software engineering; communication and collaboration; examples and case studies; adoption, use, and impact; and intellectual property and legal issues. Also included is an O
¥548.00
【预订】Open Source Software: Implementation and Management 美国库房发货，通常付款后3-5周到货！
¥657.00
【预订】Open Source Systems 9783030472399 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783030472399 Format 版本 精装 Pages Number 页数 207页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2020-05-05 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.5 cm Shipping Weight 商品重量 1070g Language 语种 其它（含多语） Book Contents 内容简介 This book constitutes the refereed proceedings of the 16th IFIP WG 2.13 International Conference on Open Source Systems, OSS 2020, held in Innopolis, Russia, in May 2020.*The 12 revised full papers and 8 short papers presented were carefully reviewed and selected from 42 submissions. The papers cover a wide range of topics in the field of free/libre open source software (FLOSS) and discuss theories, practices, experiences, and tools on development and applications of OSS systems, with a specific focus on two aspects:(a) the development of open source systems and the underlying technical, so
¥548.00
【预订】Open Source Systems: Towards Robust Practices 13th IFIP 国外库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9781013268632 Author 作者 Federico Balaguer(Created by) Format 版本 精装 Pages Number 页数 226页 Publisher 出版社 Saint Philip Street Press Publication Date 出版日期 1800-01-01 Product Dimensions 商品尺寸 11.00 x 8.50 x 0.56 Shipping Weight 商品重量 1.80 Language 语种 其它（含多语）
¥1073
【预订】Open Source Geospatial Science for Urban Studies 9783030 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783030582319 Format 版本 精装 Pages Number 页数 160页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2020-09-08 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.4 cm Shipping Weight 商品重量 930g Language 语种 英语 Book Contents 内容简介 This book is mainly focused on two themes: transportation and smart city applications. Open geospatial science and technology is an increasingly important paradigm that offers the opportunity to promote the democratization of geographical information, the transparency of governments and institutions, as well as social, economic and urban opportunities. During the past decade, developments in the area of open geospatial datahave greatly increased. The open source GIS research community believes that combining free and open software, open data, as well as open standards, leads to the creation of a sustainabl
¥1861
【预订】Open Source Mobile Learning 9781609606138 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9781609606138 Author 作者 Lee Chao Format 版本 精装 Pages Number 页数 348页 Publisher 出版社 Information Science Publishing Publication Date 出版日期 2011-06-30 Language 语种 英语 Book Contents 内容简介 The open approach has been widely used in the development of mobile applications, mobile operating systems for mobile devices, and mobile services for supporting mobile learning. In mobile learning, open source software has played an important role. Due to its stability, flexibility, security, availability, and low cost, mobile Linux and other open source products have a significant impact on the mobile learning community.Open Source Mobile Learning: Mobile Linux Applications is designed to provide the information of open source products used in each phase of the mobile learning. Comparison of popular open source products and their usability in a mobile learning syste
¥1539
【预售 按需印刷】Open Source NGOSS Applications 北京发货，付款后10天内发货
¥770.00
【预订】Open Source Systems: Grounding Research 9783642269561 美国库房发货，通常付款后3-5周到货！
¥1095
【预订】Open Source Systems 9783030208851 美国库房发货，通常付款后3-5周到货！
Product Details 基本信息 ISBN-13 书号 9783030208851 Format 版本 平装-胶订 Pages Number 页数 173页 Publisher 出版社 Springer Berlin Heidelberg Publication Date 出版日期 2020-06-06 Language 语种 英语 Book Contents 内容简介 This open access book constitutes the refereed proceedings of the 15th IFIP WG 2.13 International Conference on Open Source Systems, OSS 2019, held in Montreal, Quebec, Canada, in May 2019.The 10 revised full papers and 5 short papers presented were carefully reviewed and selected from 35 submissions. The paperscover a wide range of topics in the field of free/libre open source software (FLOSS) and areorganized in the following thematic sections: mining OSS data; organizational aspects of FLOSS projects; FLOSS adoption; FLOSS cost and licenses; and FLOSS education and training.
¥548.00
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