Reichardt, W Former Department Information Processing in Insects, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Reichardt, W., Poggio, T., & Hausen, K. (1983). Figure-ground discrimination by relative movement in the visual system of the fly: Part II: Towards the neural circuitry. Biological Cybernetics, 46(1 Supplement), 1-30. doi:10.1007/BF00595226.