NEW B $\ddot{A}$CKLUND TRANSFORMATION AND EXACT SOLUTIONS FOR VARIABLE COEFFICIENT KdV EQUATION
闫振亚, 张鸿庆
NEW B?CKLUND TRANSFORMATION AND EXACT SOLUTIONS FOR VARIABLE COEFFICIENT KdV EQUATION
YAN ZHEN-YA (闫振亚), ZHANG HONG-QING (张鸿庆)
中国物理B . 1999, (12): 889 -894 .  DOI: 10.1088/1004-423X/8/12/002