Friedrich Heitger Rüdiger von der Heydt Esther Peterhans Lukas Rosenthaler Olaf Kübler Simulation of neural contour mechanisms: representing anomalous contours. 407-421 1998 16 Image Vision Comput. 6-7 http://dx.doi.org/10.1016/S0262-8856(97)00083-8 db/journals/ivc/ivc16.html#HeitgerHPRK98