Bülthoff, HH Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Bülthoff, H. (1982). Drosophila Mutants Disturbed in Visual Orientation I: Mutants affected in Early Visual Processing. Biological Cybernetics, 45(1), 63-70. doi:10.1007/BF00387216.