%0 Journal Article %A P. E. Markov %A O. Trejos %T On the rigidity of a~glued piecewise convex surface %J Sbornik. Mathematics %D 2002 %P 231-246 %V 193 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2002_193_2_a3/ %G en %F SM_2002_193_2_a3