Wallraff, Hans Georg Verhaltensphysiologie, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;
Wallraff, H. G., Benvenuti, S., & Foa, A. (1986). Attempts to reveal the nature of apparent residual homeward orientation in anosmic pigeons - application of magnetic-fields. Monitore Zoologico Italiano-Italian Journal of Zoology, 20(4), 401-423.