%0 Journal Article %A V. Yu. Gotlib %T Helmgoltz equation solutions concentrated near periodical boundary %J Zapiski Nauchnykh Seminarov POMI %D 1998 %P 83-96 %V 250 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1998_250_a6/ %G ru %F ZNSL_1998_250_a6