1. Elton, C. S. Periodic fluctuations in the number of animals: their causes and effects. Br. J. Exp. Biol. 2, 119–163 (1924).
2. Stenseth, N. C. & Ims, R. A. in The Biology of Lemmings (eds Stenseth, N. C. & Ims, R. A.) 3–34 (Linnean Society, London, 1993).
3. Chitty, D. Do Lemmings Commit Suicide? Beautiful Hypothesis and Ugly Facts (Oxford Univ. Press, New York, 1996).
4. Stenseth, N. C. & Ims, R. A. in The Biology of Lemmings (eds Stenseth, N. C. & Ims, R. A.) 61–96 (Linnean Society, London, 1993).
5. Stenseth, N. C., Chan, K. S., Framstad, E. & Tong, H. Phase- and density-dependent population dynamics in Norwegian lemmings: interaction between deterministic and stochastic processes. Proc. R. Soc. Lond. B 265, 1957–1968 (1998).