Complex sentence: He was a student of Werner Kolhörster and Max von Laue, and he received his doctorate in mathematical physics, in 1938, from the "Friedrich-Wilhelms-Universität" (today, the "Humboldt-Universität zu Berlin").
Split into simpler sentences: He was a student of Werner Kolhörster and Max von Laue. He received his doctorate in mathematical physics under Kolhörster, in 1938, from the "Friedrich-Wilhelms-Universität" (today, the "Humboldt-Universität zu Berlin").