1. Aleksiuk, M., and Stewart, K. W., 1971, Seasonal changes in the body composition of the garter snake (Thamnophis sirtalis parietalis) at northern latitudes, Ecology
52: 485–490.
2. Andrén, C., 1986, Courtship, mating and agonistic behavior in a free-living population of adders, Vipera berus, Amphibia-Reptilia
7:353–383.
3. Attygalle, A. B., Schwarz, J., Vostrowsky, O., and Bestmann, H. J., 1986, Individual variation in the sex pheromone components of the false codling moth, Cryptophlebia leucotreta (Lepidoptera: Tortricidae), J. Naturforsch. 41:1077–1081.
4. Bradbury, J. W., and Vehrencamp, S. L., 1998, Principles of Animal Communication, Sinauer Associates, Inc., Sunderland, Massachusetts.
5. Camazine, B., Garstka, W., Tokarz, R., and Crews, D., 1980, Effects of castration and androgen replacement on male courtship behavior in the red-sided garter snake (Thamnophis sirtalis parietalis), Horm. Behav. 7:451–460.