%0 Journal Article %A P. V. Kerekesha %T Certain spatial problems of elasticity theory that lead to the Riemann problem %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1970 %P 59-66 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1970_8_a7/ %G ru %F IVM_1970_8_a7