Variational principles for two kinds of extended Korteweg–de Vries equations
曹小群, 宋君强, 张卫民, 赵军
Variational principles for two kinds of extended Korteweg–de Vries equations
Cao Xiao-Qun(曹小群), Song Jun-Qiang(宋君强), Zhang Wei-Min(张卫民), and Zhao Jun(赵军)
中国物理B . 2011, (9): 90401 -090401 .  DOI: 10.1088/1674-1056/20/9/090401