↑Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; etal. "Johann Zeitler". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on 15 December 2012. Retrieved 28 June 2012.
↑Hans "Jumbo" Zeitler gestorben (in German), 12 March 2018, archived from the original on 12 March 2018, retrieved 12 March 2018
↑"Johann Zeitler". Olympedia. Retrieved 6 November 2021.
