%0 Journal Article %A I. Y. Bylyi %T Parabolic Equation Method for Anisotropic Elastic Media %J Zapiski Nauchnykh Seminarov POMI %D 1981 %P 27-38 %V 117 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1981_117_a2/ %G ru %F ZNSL_1981_117_a2