@article{derhessemartius05, title = {Rocking Stamper and Jumping Snake from a Dynamical System Approach to Artificial Life}, author = {Der, Ralf and Hesse, Frank and Martius, Georg}, journal = {Adaptive Behavior}, volume = {14}, number = {2}, pages = {105-115}, year = {2006}, doi = {10.1177/105971230601400202} }