found: Der Passionstraktat des Heinrich von St. Gallen, 1940:title page (vorgelegt von Kurt Ruh; submitted this work as his doctoral thesis to the Universität Zürich in 1940)
found: Meister Eckhart, Theologe, Prediger, Mystiker, 1985:title page (Kurt Ruh)
found: Zum Gedenken an Kurt Ruh (1914-2002), 2004:title page (Kurt Ruh) page 7 (Prof. Dr. Dr. h.c. Kurt Ruh; died December 8, 2002)
found: German Wikipedia, viewed September 21, 2020(Kurt Ruh; born May 5, 1914, in Neuhausen am Rheinfall; died December 8, 2002, in Würzburg; Swiss Germanist and Medievalist; he was professor at the Universität Würzburg)
