1. Environmental influences on the orientation of free-flying nocturnal bird migrants;Able;Anim. Behav.,1974
2. Psychophysical limits of celestial navigation hypotheses;Adler;Ergeb. Biol.,1963
3. “Pigeon Racing Advanced Techniques.'';Aerts,1969
4. The effect of directional training on initial orientation in pigeons;Alexander,1970
5. The effect of various phase-shifting experiments on homing in pigeons;Alexander,1974