http://book.klll.cc/ebooks/author/32540.opds?sort_order=downloads2025-11-18T10:50:58ZBooks by Hecker, EwaldFree eBooks since 1971.Project Gutenberghttps://book.klll.ccwebmaster@gutenberg.orghttps://book.klll.cc/gutenberg/favicon.ico2512025-11-18T10:50:58Zhttps://en.wikipedia.org/wiki/Ewald_HeckerSee also: en.wikipedia2025-11-18T10:50:58Zhttps://book.klll.cc/ebooks/27205.opdsDie Physiologie und Psychologie des Lachens und des Komischen.
(German)Ewald Hecker