1. Akaike, H. (1973). Information theory and an extension of the maximum likelihood principle. InSecond International Symposium on Information Theory, Tsahkadsor, Armenia, USSR, September 2–8, 1971 (B. N. Petrov and F. Csáki, Editors). Akadémiai Kiadó, Budapest, Hungary.pp. 267–281.
2. Singing rate and female attraction in the pied flycatcher: an experiment
3. Allen, J. A. (1877). The influence of physical conditions in the genesis of species. Radical Review 1:108–140.
4. Austin, G. T. and J. S. Miller (1982). Temperature-related behavior of some migrant birds in the desert. Western North American Naturalist 42:232–240.
5. Strategic Regulation of Body Mass and Singing Behavior in New Zealand Robins