中国科学院数学与系统科学研究院期刊网
Bäcklund Transformation and Conservation Laws for the Variable-coefficient N-Coupled Nonlinear Schrödinger Equations with Symbolic Computation
Xiang Hua MENG, Bo TIAN, Tao XU, Hai Qiang ZHANG
Acta Mathematica Sinica . 2012, (5): 969 -974 .  DOI: 10.1007/s10114-011-0531-8