http://book.klll.cc/ebooks/author/40079.opds 2025-08-20T02:40:13Z Books by Blass, Friedrich (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-20T02:40:13Z http://de.wikipedia.org/wiki/Friedrich_Blass See also: de.wikipedia.org 2025-08-20T02:40:13Z http://en.wikipedia.org/wiki/Friedrich_Blass See also: en.wikipedia 2025-08-20T02:40:13Z https://book.klll.cc/ebooks/39553.opds Einiges aus der Geschichte der Astronomie im Alterthum (German) Friedrich Blass