%0 Journal Article %A N. N. Ural'tseva %T On properties of the free boundary in the neighborhood of contact with the given boundary %J Zapiski Nauchnykh Seminarov POMI %D 1997 %P 303-312 %V 249 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1997_249_a14/ %G ru %F ZNSL_1997_249_a14