http://book.klll.cc/ebooks/author/56176.opds?sort_order=release_date 2025-11-17T07:30:15Z Books by Bie, Oskar Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T07:30:15Z https://en.wikipedia.org/wiki/Oskar_Bie See also: en.wikipedia 2025-11-17T07:30:15Z https://de.wikipedia.org/wiki/Oscar_Bie See also: de.wikipedia 2025-11-17T07:30:15Z https://book.klll.cc/ebooks/71333.opds History of the pianoforte and pianoforte players Oskar Bie