Reichardt, W Former Department Information Processing in Insects, Max Planck Institute for Biological Cybernetics, Max Planck Society; Max Planck Institute for Biological Cybernetics, Max Planck Society;
https://link.springer.com/content/pdf/10.1007/BF00405491.pdf (Publisher version)
Reichardt, W. (1980). Analogy between hologram formation and computation of relative movement by the visual system of the fly. Die Naturwissenschaften, 67(8), 411-412. doi:10.1007/BF00405491.