Smarandache Theorem in Hyperbolic Geometry von Kostin, A.V., Sabitov, I.Kh.

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On asymptotic decompositions of o-solutions in the theory of quasilinear systems of difference equations von Kostin, A.V., Skripnik, I.V.

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Some generalisation of the shadow problem in the Lobachevsky space von Kostin, A. V., Костін , А. В.

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Problem of shadow in the Lobachevski space von Kostin, A. V., Костин, А. В., Костин, А. В.

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On solutions of a second-order quasilinear differential system representable by Fourier series with slowly varying parameters von Kostin, A. V., Shchegolev, S. A., Костин, А. В., Щеголев, С. А., Костин, А. В., Щеголев, С. А.

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On asymptotic decompositions of o-solutions in the theory of quasilinear systems of difference equations von Kostin, A. V., Skrypnik, I. V., Костин, А. В., Скрыпник, И. В., Костин, А. В., Скрыпник, И. В.

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