Direct approach to perturbation theory for bright solitons
颜家壬, 敖胜美, 俞慧友
Direct approach to perturbation theory for bright solitons
Yan Jia-Ren (颜家壬), Ao Sheng-Mei (敖胜美), Yu Hui-You (俞慧友)
中国物理B . 2005, (1): 28 -32 .  DOI: 10.1088/1009-1963/14/1/006