Nissen: Zoolog. Buchillustration 1969/78 # 1125 ; Ahr, Beate & Kirsch-Stracke, Roswitha: „Die künstlerische Freude am Reichtum der Naturformen gab den Anlass“. Die Naturschutz-Pionierinnen Margarete Boie (1880-1946) und Helene Varges (1877-1946) (Hannover 2010) ;
Further Places of Activity: Poland and South Africa??. More known for some ex libris.
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