Stenseth, N. C., Viljugrein, H., Saitoh, T., Hansen, T. F., Kittilsen, M. O., Bølviken, E., & Glöckner, F. (2003). Seasonality, density dependence, and population cycles in Hokkaido voles. National Academy of Sciences.

Stenseth, Nils Chr., Hildegunn Viljugrein, Takashi Saitoh, Thomas F. Hansen, Marte O. Kittilsen, Erik Bølviken, und Fredrik Glöckner. Seasonality, Density Dependence, and Population Cycles in Hokkaido Voles. National Academy of Sciences, 2003.

Stenseth, Nils Chr., et al. Seasonality, Density Dependence, and Population Cycles in Hokkaido Voles. National Academy of Sciences, 2003.