%0 Journal Article %A B. G. Nikolaev %T An approach to solving problems in the case of annular, asymmetric regions %J Zapiski Nauchnykh Seminarov POMI %D 1978 %P 174-183 %V 78 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1978_78_a12/ %G ru %F ZNSL_1978_78_a12