http://book.klll.cc/ebooks/author/56874.opds?sort_order=title 2025-11-16T13:17:09Z Books by Clessin, Stephan Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-16T13:17:09Z https://de.wikipedia.org/wiki/Stephan_Clessin See also: de.wikipedia 2025-11-16T13:17:09Z https://en.wikipedia.org/wiki/Stefan_Clessin See also: en.wikipedia 2025-11-16T13:17:09Z https://book.klll.cc/ebooks/72952.opds Tier- und Pflanzenwelt des Süsswassers. Zweiter Band. (German) Stephan Clessin, Arthur Seligo, Friedrich Zschokke, C. Apstein, Paul Kramer, E. Schmidt-Schwedt, and Friedrich Borcherding