1. V. E. Zakharov and E. A. Kuznetsov, “On three-dimensional solitons,” Zh. Éxper. Teoret. Fiz. 66(2), 594–597 (1974).
2. A. V. Faminskii, “The Cauchy problem for the Zakharov-Kuznetsov equation,” Differ. Uravn. 31(6), 1070–1081 (1995) [Differ. Equations 31 (6), 1002–1012 (1995)].
3. A. V. Faminskii, “Faminskij, A. V. The Cauchy problem for odd-order quasilinear equations,” Mat. Sb. 180(9), 1183–1210 (1989) [Math. USSR–Sb. 168 (1), 31–59 (1990)].
4. J. L. Levandosky, “Smoothing properties of nonlinear dispersive equations in two spatial dimensions,” J. Differential Equations 175(2), 275–352 (2001).
5. A. V. Faminskii and A. P. Antonova, “On internal regularity of solutions to the initial value problem for the Zakharov-Kuznetsov equation,” in Progress in Partial Differential Equations, Springer Proc. in Math. Stat. (Springer, Cham, 2013), Vol. 44, pp. 53–74.