%0 Journal Article
%A S. I. Savel'ev
%T On surfaces with planar generators along which the tangent plane is constant
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1960
%P 154-167
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1960_2_a17/
%G ru
%F IVM_1960_2_a17