2 citations to https://www.mathnet.ru/rus/cmfd386

1. Faminskii A.V., “Initial-Boundary Value Problems on a Half-Strip For the Modified Zakharov-Kuznetsov Equation”, J. Evol. Equ., 21:2 (2021), 1263–1298        
2. Ya.-H. Liang, K.-J. Wang, “Generalized variational principle for the fractal (2+1)-dimensional Zakharov-Kuznetsov equation in quantum magneto-plasmas”, Symmetry-Basel, 13:6 (2021), 1022