Reduction of a multidimensional poincare-invariant nonlinear equation to two-dimensional equations
English version (Springer): Ukrainian Mathematical Journal 43 (1991), no. 10, pp 1219-1230.
Citation Example: Barannik L. F., Barannyk A. F., Fushchich V. I. Reduction of a multidimensional poincare-invariant nonlinear equation to two-dimensional equations // Ukr. Mat. Zh. - 1991. - 43, № 10. - pp. 1311–1323.
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