http://book.klll.cc/ebooks/subject/6064.opds?sort_order=release_date 2025-08-29T12:33:15Z Books about Differential equations (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-29T12:33:15Z https://book.klll.cc/ebooks/subject/6064.opds?sort_order=title Sort Alphabetically by Title 2025-08-29T12:33:15Z https://book.klll.cc/ebooks/subject/6064.opds?sort_order=downloads Sort by Popularity 2025-08-29T12:33:15Z https://book.klll.cc/ebooks/29788.opds Four Lectures on Mathematics, Delivered at Columbia University in 1911 Jacques Hadamard 2025-08-29T12:33:15Z https://book.klll.cc/ebooks/25157.opds Über Integralinvarianten und Differentialgleichungen (German) Sophus Lie