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%2F978-3-642-93083-6_7.pdf (Publisher version)
Reichardt, W. (1978). Figure-ground discrimination by the visual system of the fly. In R. Heim, & G. Palm (Eds.), Theoretical Approaches to Complex Systems (pp. 117-146). Berlin, Germany: Springer.