http://book.klll.cc/ebooks/author/2845.opds?sort_order=title 2025-11-16T17:43:51Z Books by Heiberg, J. L. (Johan Ludvig) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-16T17:43:51Z https://en.wikipedia.org/wiki/Johan_Ludvig_Heiberg_(historian) See also: en.wikipedia 2025-11-16T17:43:51Z https://book.klll.cc/ebooks/7825.opds Geometrical Solutions Derived from Mechanics; a Treatise of Archimedes Archimedes