Bauchinger, Ulf Verhaltensphysiologie, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;
Bauchinger, U., & Klaassen, M. (2005). Longer days in spring than in autumn accelerate migration speed of passerine birds. Journal of Avian Biology, 36(1), 3-5. doi:10.1111/j.0908-8857.2005.03444.x.