[The 50th anniversary of the death of Ludolf Krehl (26 December 1861-26 May 1937)].
Drunkenmölle
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D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D010827:Physiology / Q000266:history
Zum 50. Todestag von Ludolf Krehl (26. 12. 1861-26. 5. 1937).