Conference Paper
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, Vol.
I, pp. 646 - 658 (Ed. Ouellet, H.). XIX Congressus Internationalis Ornithologici, Ottawa, Canada, June 22, 1986 - June 29, 1986. University of Ottawa Press, Ottawa (1988)