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 Project Gutenberg 2011-09-08 Public domain in the USA. 127 Carroll, Lewis 1832 1898 Dodgson, Charles Lutwidge Condensation of Determinants Being a New and Brief Method for Computing their Arithmetical Values en Determinants QA Text Mathematics 194441 2011-09-08T09:21:16 application/pdf 9160 2025-08-15T08:16:51.608260 application/rdf+xml 68940 2011-09-08T09:21:16 application/prs.tex 17249 2025-08-15T08:16:51.542267 image/jpeg 4142 2025-08-15T08:16:51.300255 image/jpeg 176921 2011-09-08T09:21:18 application/octet-stream application/zip 21036 2011-09-12T08:35:36 application/octet-stream application/zip en.wikipedia