Reichardt, W Former Department Information Processing in Insects, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Reichardt, W., Schlögl, R., & Egelhaaf, M. (1988). Movement detectors of the correlation type provide sufficient information for local computation of the 2-D velocity field. In International Symposium on Neural and Synergetic Computers (pp. 170-179). Berlin, Germany: Springer.