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2. L. A. Dorfman and Yu. B. Romanenko, ?Flow of a viscous liquid in a cylindrical vessel with a rotating lid,? Mekh. Zhidk. Gaza, No. 5 (1966).
3. A. A. Samarskii, Introduction to the Theory of Difference Procedures [in Russian], Nauka, Moscow (1974).
4. T. V. Kuskova and L. A. Chudov, ?Approximate boundary conditions for a vortex in the calculation of the flow of a viscous incompressible liquid,? in: Computation Methods and Programming [in Russian], Computer Center of Moscow State University, No. 11 (1968).