%0 Journal Article
%A A. Z. Petrov
%A V. R. Kaigorodov
%A V. N. Abdullin
%T Classification of gravitational fields of general type in terms of the motion groups.~IV
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1962
%P 130-142
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1962_1_a14/
%G ru
%F IVM_1962_1_a14