OCLC, a non-profit library colletive, http://www.oclc.org/dewey/resources.en.html
Introduction to the Dewey Decimal Classification, http://oclc.org/content/dam/oclc/dewey/versions/print/intro.pdf
The FOSS4Lib is a repository for many relevant and free OSS for libraries, https://foss4lib.org/
Examples of libraries that use Koha:
- The World Maritime University, http://wmu.se/library and the
- Asia e University, http://library.aeu.edu.my/
- To find out more about Koha, visit the website, http://koha-community.org/.