A.M. Vinogradov, “From symmetries of partial differential equations towards secondary (“quantized”) calculus”, Journal of Geometry and Physics, 14:2 (1994), 146
Giuseppe Gaeta, Nonlinear Symmetries and Nonlinear Equations, 1994, 55
Giuseppe Gaeta, Nonlinear Symmetries and Nonlinear Equations, 1994, 175
L Abellanas, C Martinez Ontalba, J Phys A Math Gen, 26:23 (1993), L1229
N Asano, H Nakajima, J Phys A Math Gen, 26:9 (1993), 2169
D. K. Ludlow, P. A. Clarkson, Applications of Analytic and Geometric Methods to Nonlinear Differential Equations, 1993, 415
Alexander P. Veselov, “Growth and integrability in the dynamics of mappings”, Comm Math Phys, 145:1 (1992), 181
С. И. Свинолупов, В. В. Соколов, “Факторизация эволюционных уравнений”, УМН, 47:3(285) (1992), 115–146 ; S. I. Svinolupov, V. V. Sokolov, “Factorization of evolution equations”, Russian Math. Surveys, 47:3 (1992), 127–162
А. П. Веселов, “Интегрируемые отображения”, УМН, 46:5(281) (1991), 3–45 ; A. P. Veselov, “Integrable maps”, Russian Math. Surveys, 46:5 (1991), 1–51
С. И. Свинолупов, “Йордановы алгебры и обобщенные уравнения Кортевега–де Фриза”, ТМФ, 87:3 (1991), 391–403 ; S. I. Svinolupov, “Jordan algebras and generalized Korteweg–de Vries equations”, Theoret. and Math. Phys., 87:3 (1991), 611–620