E. V. Ferapontov, “Dirac reduction of the hamiltonian operator $\delta^{IJ}\frac{d}{dx}$ to a submanifold of euclidean space with flat normal connection”, Funct. Anal. Appl., 26:4 (1992), 298–300
E. V. Ferapontov, “Nonlocal matrix hamiltonian operators, differential geometry, and applications”, Theoret. and Math. Phys., 91:3 (1992), 642–649
E. V. Ferapontov, “Differential geometry of nonlocal Hamiltonian operators of hydrodynamic type”, Funct. Anal. Appl., 25:3 (1991), 195–204
M. V. Pavlov, S. P. Tsarev, “On conservation laws of Benney equations”, Russian Math. Surveys, 46:4 (1991), 196–197
O. I. Mokhov, E. V. Ferapontov, “Non-local Hamiltonian operators of hydrodynamic type related to metrics of constant curvature”, Russian Math. Surveys, 45:3 (1990), 218–219
O. I. Bogoyavlenskii, “Breaking solitons in $2+1$-dimensional integrable equations”, Russian Math. Surveys, 45:4 (1990), 1–86
Funct. Anal. Appl., 24:3 (1990), 247–249
B. A. Dubrovin, “Differential geometry of strongly integrable systems of hydrodynamic type”, Funct. Anal. Appl., 24:4 (1990), 280–285
S. P. Tsarev, “The geometry of Hamiltonian systems of hydrodynamic type. The generalized hodograph method”, Math. USSR-Izv., 37:2 (1991), 397–419
E. V. Ferapontov, “Integration of weekly nonlinear semi-hamiltonian systems of hydrodynamic type by methods of the theory of webs”, Math. USSR-Sb., 71:1 (1992), 65–79