Communications in Nonlinear Science and Numerical Simulation
Communications in Nonlinear Science and Numerical Simulation > 2009 > 14 > 5 > 2120-2131
Communications in Nonlinear Science and Numerical Simulation > 2009 > 14 > 7 > 2853-2857
Communications in Nonlinear Science and Numerical Simulation > 2009 > 14 > 11 > 3731-3737