Painlevé property, local and nonlocal symmetries, and symmetry reductions for a (2+1)-dimensional integrable KdV equation
Xiao-Bo Wang(王晓波), Man Jia(贾曼), and Sen-Yue Lou(楼森岳)
中国物理B . 2021, (1): 10501 .  DOI: 10.1088/1674-1056/010501