%0 Journal Article
%A L. N. Krivonosov
%T Parallel and normal correspondence of two-dimensional surfaces in the four-dimensional Euclidean space $E_4$
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1966
%P 78-87
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1966_5_a10/
%G ru
%F IVM_1966_5_a10