Wikelski, Martin Abteilung Wikelski, Radolfzell, Max Planck Institut für Ornithologie, Max Planck Society;
Gagliardo, A., Ioale, P., Filannino, C., & Wikelski, M. (2011). Homing pigeons only navigate in air with intact environmental odours: A test of the olfactory activation hypothesis with GPS data loggers. PLoS One, 6(8): e22385. doi:10.1371/journal.pone.0022385.