1. Whitten, W. K. in Advances in Reproductive Physiology Vol. 1, (ed. McLaren, A.) 155–177 (Academic, New York, 1966).
2. Bronson, F. H. in Pheromones (ed. Birch, M. C.) 344–365 (North-Holland, Amsterdam, 1974).
3. Mackintosh, J. H. & Grant, E. C. Z. Tierpsychol. 23, 584–587 (1966).
4. Doty, R. L. Psychol. Bull. 81, 159–172 (1974).
5. Marr, J. N. & Gardner, L. E. J. genet. Psychol. 107, 167–174 (1965).