Physica D: Nonlinear Phenomena
Physica D: Nonlinear Phenomena > 2007 > 227 > 1 > 70-77
Physica D: Nonlinear Phenomena > 2007 > 228 > 2 > 179-187
Physica D: Nonlinear Phenomena > 2007 > 230 > 1-2 > 65-71
Physica D: Nonlinear Phenomena > 2007 > 234 > 2 > 131-149