%0 Journal Article %A I. V. Bezmenov %T Transfer of Sommerfeld's radiation conditions to an~artificial boundary of a~domain, based on a~variational principle %J Sbornik. Mathematics %D 1995 %P 261-279 %V 81 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1995_81_2_a0/ %G en %F SM_1995_81_2_a0