keyword: Thema Klassifizierung -- Geographische Qualifier (1) -- Europa (1D) -- Mitteleuropa (1DF) -- Österreich (1DFA) -- Wien (1DFA-AT-W) – 0 free books.

These OSI Approved License licensed ebooks are free to read - the people who created them want you to read and share them.

Open source licenses are licenses that comply with the Open Source Definition — in brief, they allow software to be freely used, modified, and shared. To be approved by the Open Source Initiative (also known as the OSI), a license must go through the Open Source Initiative's license review process.