Dominoni, Davide M. Abteilung Wikelski, Max Planck Institut für Ornithologie, Max Planck Society; IMPRS, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;
Helm, B., Ben-Shlomo, R., Sheriff, M. J., Hut, R. A., Foster, R., Barnes, B. M., et al. (2013). Annual rhythms that underlie phenology: Biological time-keeping meets environmental change. Proceedings of the Royal Society B: Biological Sciences, 280(1765): 20130016. doi:10.1098/rspb.2013.0016.