@article{05632560, title = {Generalized variational principle for long water-wave equation by He's semi-inverse method.}, journal = {Mathematical Problems in Engineering}, volume = {2009}, year = {2009}, doi = {10.1155/2009/925187}, zbl = {1185.35202}, language = {en}, url = {http://dml.mathdoc.fr/item/05632560} }
Zhang, Weimin. Generalized variational principle for long water-wave equation by He's semi-inverse method.. Mathematical Problems in Engineering, Tome 2009 (2009) . doi : 10.1155/2009/925187. http://gdmltest.u-ga.fr/item/05632560/