24 citations to https://www.mathnet.ru/rus/tmf5651
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Ian M. Anderson, Niky Kamran, “The variational bicomplex for hyperbolic second-order scalar partial differential equations in the plane”, Duke Math. J., 87:2 (1997)
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А. А. Дрокин, А. В. Шаповалов, И. В. Широков, “Алгебра локальных симметрий уравнения Шредингера для атома водорода”, ТМФ, 106:2 (1996), 273–284
; A. A. Drokin, A. V. Shapovalov, I. V. Shirokov, “Local symmetry algebra of Shrödinger equation for Hydrogen atom”, Theoret. and Math. Phys., 106:2 (1996), 227–236
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O. L. Varaksin, I. V. Shirokov, “Integration of the dirac equation, which does not presume complete separation of variables, in Stäckel spaces”, Russ Phys J, 39:1 (1996), 27
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A. A. Drokin, A. V. Shapovalov, I. V. Shirokov, “Reduction and noncommutative integration of linear differential equations”, Russ Phys J, 36:11 (1993), 1059