DescriptionStohlerHansZurich1932.tif English: Dr. Stohler (HansStohler) at the International Mathematical Congress, Zürich 1932. Date Taken on 7 September
DescriptionKoebe Stohler Brusotti Hiong Zurich1932.tif English: Left to right, upper: Prof. Koebe (Paul Koebe), Dr. Stohler (HansStohler, lower: Prof. Brusotti