I obtained a position as an assistant at the University Observatory of Göttingen immediately after finishing my thesis there in spring 1970. During the preparation of my habilitation I started to supervise students during their practical and research works. I supervised myself about a dozen diploma students and thesis works at Göttingen.

After finishing my habilitation in 1977, I could start giving lectures in experimental methods of astrophysics and special topics of solar physics. I have given about a dozen different lectures. Most of these are available in transparencies and copies - an example from the 1st Canary Winter School in Astrophysics with the title 'Solar post - focus Instrumentation' (PS-File, 147 kB) is given from the manuscript for the book published (see reference at the begin of the lecture !).

After obtaining the staff position at the Kiepenheuer-Institut für Sonnenphysik (KIS) in Freiburg in 1980, I only indirectly supervised students from the University of Freiburg . I sometimes gave lectures of colleagues at the university or the institute and helped in supervising the course of practical astronomical work.

I supervised autonomously several guests from abroad during their stays at the KIS. The total number of supervised students and/or guests during my career is now 24 .

In 1995 I obtained the official permission from the University of Freiburg to organize the course of practical astronomical work, which is performed partly in the institute and partly on the nearby Schauinsland observatory. The course in 1996 was given together with Dr. T. Kentischer and Dipl.-Phys. M. Röser. Since summer 1997 I help Prof. Dr. Oskar von der Lühe or PD Dr. Wolfgang Schmidt to supervise a part of the practical work in astronomy.