Thorsten Hansen Heiko Neumann Neural Mechanisms for Representing Surface and Contour Features. 139-153 2001 conf/neuroscience/2001 Emergent Neural Computational Architectures Based on Neuroscience http://link.springer.de/link/service/series/0558/bibs/2036/20360139.htm db/conf/neuroscience/neuroscience2001.html#HansenN01