1. The need of vision in homing by Myotis sodalis;Barbour;J. Mammal,1966
2. Quantitative studies of echolocation in bats (Myotis l., lucifugus); studies of vision of bats (Myotis l. lucifugus and Eptesicus f. fuscus); and quantitative studies of vision of owls (Tyto alba practincola);Curtis,1952
3. The use of vision in flight by the bat Myotis sodalis;Davis;Am. Midl. Nat,1965
4. Dressurversuche zur Feststellung eines optischen Orientierungsvermögens der Fledermäuse;Eisentraut;Jh. Ver. vaterl. Naturk. Württ,1950
5. The sensory basis of obstacle avoidance by flying bats;Griffin;J. exp. Zool,1941