Egelhaaf, M 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/BF01131163.pdf (Publisher version)
Egelhaaf, M. (1990). Spatial interactions in the fly visual system leading to selectivity for small-field motion. Die Naturwissenschaften, 77(4), 182-185. doi:10.1007/BF01131163.