Nonlocal symmetries and negative hierarchies related to bilinear Bäcklund transformation

胡晓瑞, 陈勇

Hu Xiao-Rui (胡晓瑞), Chen Yong (陈勇)

中国物理B . 2015, (3): 30201 -030201 . DOI: 10.1088/1674-1056/24/3/030201