Konferenzbeitrag
Farner, D. S.; Mattocks Jr., P. W.; Schwabl, H.; Schwabl-Benzinger, I.: Photorefractoriness and negative gonadal feedback in seasonal termination of reproduction in Zonotrichia leucophrys gambelii. In: Acta XIX Congressus Internationalis Ornithologici, Bd.
I, S. 646 - 658 (Hg. Ouellet, H.). XIX Congressus Internationalis Ornithologici, Ottawa, Canada, 22. Juni 1986 - 29. Juni 1986. University of Ottawa Press, Ottawa (1988)