Abdul-Majid Wazwaz Nonlinear dispersive special type of the Zakharov-Kuznetsov equation ZK(n, n) with compact and noncompact structures. 577-590 2005 161 Applied Mathematics and Computation 2 http://dx.doi.org/10.1016/j.amc.2003.12.050 db/journals/amc/amc161.html#Wazwaz05c