VOOUS KH (1959) Book reviews: Viking Olsson: Dispersal, migration, longevity and death causes at Strix aluca, Buteo buteo, Ardea cinerea and Lams argentatus. Acta Vertebratica I (2), 1958. LIMOSA 32 (3): 179-180.

Viking Olsson: Dispersal, migration, longevity and death causes at Strix aluca, Buteo buteo, Ardea cinerea and Lams argentatus. Acta Vertebratica I (2), 1958

[free pdf] [dutch summary]