%0 Journal Article %A V. R. Kaigorodov %T The classification of gravitational fields of general type in terms of the motion groups.~V %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1963 %P 51-55 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1963_5_a7/ %G ru %F IVM_1963_5_a7