2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/163213New manifestly gauge-invariant forms of two-dimensional generalized dispersive long-wave and Nizhnik-Veselov-Novikov systems of integrable nonlinear equations are presented. It is shown how in different gauges from such forms famous two-dimensional generalization of dispersive long-wave system of equations, Nizhnik-Veselov-Novikov and modified Nizhnik-Veselov-Novikov equations and other known and new integrable nonlinear equations arise. Miura-type transformations between nonlinear equations in different gauges are considered.13 pages, LaTeX, no figuresExactly Solvable and Integrable SystemsMathematical PhysicsAnalysis of PDEstext