Schafer PK, Sauerbruch T (2004). "Rudolf Schindler (1888--1968)--"Vater" der Gastroskopie" [Rudolf Schindler (1888--1968)--"father" of gastroscopy]. Z Gastroenterol (in German). 42 (6): 550–6. doi:10.1055/s-2004-813178. PMID15190453.
Gibson, Ursula Schindler (1988). "Rudolf Schindler, MD: living with a Renaissance man". Gastrointestinal Endoscopy. 34 (5): 383–385. doi:10.1016/S0016-5107(88)71400-5. PMID3053319.
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pubmed.ncbi.nlm.nih.gov
Schafer PK, Sauerbruch T (2004). "Rudolf Schindler (1888--1968)--"Vater" der Gastroskopie" [Rudolf Schindler (1888--1968)--"father" of gastroscopy]. Z Gastroenterol (in German). 42 (6): 550–6. doi:10.1055/s-2004-813178. PMID15190453.
Gibson, Ursula Schindler (1988). "Rudolf Schindler, MD: living with a Renaissance man". Gastrointestinal Endoscopy. 34 (5): 383–385. doi:10.1016/S0016-5107(88)71400-5. PMID3053319.