Project Gutenberg 2010-04-07 Public domain in the USA. 80 Vogt, Wolfgang 1883 1916 Synthetische Theorie der Cliffordschen Parallelen und der Linearen Linienörter des Elliptischen Raumes de Geometry, Non-Euclidean Parallels (Geometry) QA Text Mathematics DE Sachbuch Browsing: Mathematics Browsing: Science - General 819410 2010-04-08T05:45:52 application/pdf 728577 2010-04-08T05:45:53 application/pdf application/zip 257797 2010-04-07T09:38:30 application/prs.tex 409321 2010-04-08T05:45:52 application/prs.tex application/zip 9985 2025-06-13T07:18:37.749893 application/rdf+xml 26897 2025-06-13T07:18:37.676891 image/jpeg 4675 2025-06-13T07:18:37.393902 image/jpeg Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog