%0 Journal Article %A B. G. Nikolaev %T Application of the Laplace method to the construction of solutions of the Helmholtz equation %J Zapiski Nauchnykh Seminarov POMI %D 1968 %P 144-167 %V 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1968_9_a7/ %G ru %F ZNSL_1968_9_a7