1. Kittredge, J.S., et al.: Fishery Bull. 72 (1), 1 (1974)
2. Al-Ogily, S.M., Knight-Jones, E.W.: Nature 265, 728 (1977)
3. Sondheimer, E., Simeone, J.B. (eds.): Chemical Ecology. New York-London: Academic Press 1970
4. Wilson, E.E., Bossert, W.H.: Rec. Prog. Hormone Res. 19, 673 (1963)
5. Harborne, J.B. (ed.): Phytochemical Ecology. London-New York: Academic Press 1972