%0 Journal Article %A M. N. Yakovlev %T Two-layered difference schemes for solving multipoint problems %J Zapiski Nauchnykh Seminarov POMI %D 1981 %P 218-234 %V 111 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1981_111_a16/ %G ru %F ZNSL_1981_111_a16