1.
- 1st vitreoretinal symposium : March 20th and 21st, 1998 in Frankfurt/Main. 1998. 212, Suppl. 3 - Stuttgart : Enke, 1998 - 10 s.(Klinische Monatsblätter für Augenheilkunde; Suppl. 3) [1, currently available 0, at library only 1]
- Chapters, articles