http://book.klll.cc/ebooks/bookshelf/102.opds?sort_order=release_date&start_index=151 2025-08-17T05:39:50Z Books in Mathematics (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 151 2025-08-17T05:39:50Z https://book.klll.cc/ebooks/97.opds Flatland: A Romance of Many Dimensions Edwin Abbott Abbott 2025-08-17T05:39:50Z https://book.klll.cc/ebooks/69.opds The 32nd Mersenne Prime David Slowinski 2025-08-17T05:39:50Z https://book.klll.cc/ebooks/52.opds The Square Root of 2 Stan Kerr 2025-08-17T05:39:50Z https://book.klll.cc/ebooks/50.opds Pi Scott Hemphill