^"Erwin Klumpp – Rorschachs grösster Sportler (1921–2010)". St. Galler Tagblatt (in German). 15 April 2010. Retrieved 2 November 2020.
^Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "Erwin Klumpp Olympic Results". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on 18 April 2020. Retrieved 24 November 2019.