%0 Journal Article %A V. M. Babich %A N. S. Grigor'ev %T Asymptotical properties of solutions of some three-dimensional problems %J Zapiski Nauchnykh Seminarov POMI %D 1975 %P 20-77 %V 51 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1975_51_a1/ %G ru %F ZNSL_1975_51_a1