Wehrhahn, C Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Wehrhahn, C. (1976). Evidence for the role of retinal receptors R 7/8 in the orientation behaviour of the fly. Biological Cybernetics, 21(4), 213-220. doi:10.1007/BF00344166.