X-Nico

Ernst Friedrich Wilhelm Klinkerfues

However, the role of Klinkerfues' section of the observatory was solely to deal with practical work, the theoretical work being placed in the hands of Ernst Schering.

Karl Heun

In 1881 with the dissertation Die Kugelfunktionen und Laméschen Funktionen als Determinanten he received his doctorate under Schering at the University of Göttingen.

see also