%0 Journal Article %A M. Yu. Vasil'chik %T On necessary and sufficient conditions for the trace of functions from the Sobolev space on the boundary of a plane domain with a non-Lipschitz boundary %J Matematičeskie trudy %D 1992 %P 5-29 %V 21 %I mathdoc %U http://geodesic.mathdoc.fr/item/MT_1992_21_a1/ %G ru %F MT_1992_21_a1