%0 Journal Article
%A I. A. Babenko
%T Singularities of the projection of piecewise-linear surfaces in $\mathbf{R}^3$
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1991
%P 72-75
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_1991_2_a14/
%G ru
%F VMUMM_1991_2_a14