[3] Liu Xiqiang. Exact solutions of the variable coefficient KdV and SG type equations [J]. Applied. MathematicsJCU, Ser B, 1998, 13(1): 25-30.
[6] Liu Xiqiang, Jiang Song. Exact solutions for general variable coefficient KdV equation [J]. Appl. Math-JCU, B,2001, 16(4): 377-380.
[11] Fu Zuntao, Liu Shida, et al. New exact solutions to KdV equations with variable coefficient or forcing [J]. Applied Mathematics and Mechanics, 2004, 25(1): 67-73.
[12] Zhang Jiefang, Liu Yulu. New truncated expansion method and soliton-like solution of variable coefficient KdVMKdV equation with three arbitrary functions [J]. Applied Mathematics and Mechanics, 2003, 24(11): 1114-1117.