1. Berg, B. C. Random Walks in Biology (Princeton Univ. Press, Princeton, 1993)
2. Payne, T. L., Birch, M. C. & Kennedy, M. C. (eds) Mechanisms in Insect Olfaction (Clarendon, Oxford, 1986)
3. Murlis, J., Elkinton, J. S. & Cardé, R. T. Odor plumes and how insects use them. Annu. Rev. Entomol. 37, 505–532 (1992)
4. Dusenbery, D. B. Sensory Ecology: How Organisms Acquire and Respond to Information (Freeman, New York, 1992)
5. Mafra-Neto, A. & Cardé, R. T. Fine-scale structure of pheromone plumes modulates upwind orientation of flying moths. Nature 369, 142–144 (1994)