http://book.klll.cc/ebooks/author/44802.opds?sort_order=title 2026-01-13T07:04:51Z Books by Hager, Hermann Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2026-01-13T07:04:51Z https://en.wikipedia.org/wiki/Hermann_Hager See also: en.wikipedia 2026-01-13T07:04:51Z https://book.klll.cc/ebooks/48450.opds Mikroskop und seine Anwendung (German) Hermann Hager