A. M. Kamchatnov, “Gurevich–Pitaevskii problem and its development”, Phys. Usp., 64:1 (2021), 48–82
A. Ya. Maltsev, “The Lorentz-Invariant Deformation of the Whitham System for the Nonlinear Klein–Gordon Equation”, Funct. Anal. Appl., 42:2 (2008), 103–115
O. M. Kiselev, “Asymptotics of solutions of higher-dimensional integrable equations and their perturbations”, Journal of Mathematical Sciences, 138:6 (2006), 6067–6230
T. Grava, “Existence of a global solution of the Whitham equations”, Theoret. and Math. Phys., 122:1 (2000), 46–57
P. I. Naumkin, I. A. Shishmarev, “The step-decay problem for the Korteweg-de Vries-Burgers equation”, Funct. Anal. Appl., 25:1 (1991), 16–25
S. P. Tsarev, “The geometry of Hamiltonian systems of hydrodynamic type. The generalized hodograph method”, Math. USSR-Izv., 37:2 (1991), 397–419
B. A. Dubrovin, S. P. Novikov, “Hydrodynamics of weakly deformed soliton lattices. Differential geometry and Hamiltonian theory”, Russian Math. Surveys, 44:6 (1989), 35–124
R. F. Bikbaev, “Large-time asymptotics of the solution of the nonlinear Schrödinger equation with boundary conditions of step type”, Theoret. and Math. Phys., 81:1 (1989), 1011–1017
G. V. Potëmin, “Algebro-geometric construction of self-similar solutions of the Whitham equations”, Russian Math. Surveys, 43:5 (1988), 252–253