%0 Journal Article %A M. I. Shtogrin %T Piecewise Smooth Developable Surfaces %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2008 %P 227-250 %V 263 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2008_263_a15/ %G ru %F TM_2008_263_a15