@book{UBHD-1518773, year={1982}, number={ARRAY(0x55b8f42ac6f8)}, series={Freiburger Universit{\"a}tsbl{\"a}tter / Albert-Ludwigs-Universit{\"a}t Freiburg}, library={UB [Signatur: ZSA 2668 B::21.1982,Heft 75- 78]}, }