%0 Journal Article
%A I. Ya. Bakelman
%T Non-regular surfaces of bounded external curvature
%J Doklady Akademii Nauk
%D 1958
%P 631-632
%V 119
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1958_119_4_a0/
%G ru
%F DAN_1958_119_4_a0