Wilhelm Valentiner Papers (1924-1945) http://www.dalnetarchive.org/handle/11061/2186 2026-04-04T05:14:04Z 2026-04-04T05:14:04Z sample title http://www.dalnetarchive.org/handle/11061/2831 2018-11-28T15:40:37Z 9999-01-01T00:00:00Z sample title 9999-01-01T00:00:00Z