%0 Journal Article %A L. A. Molotkov %T On the matric representions of the dispersion equation for layer-elastic media %J Zapiski Nauchnykh Seminarov POMI %D 1972 %P 116-131 %V 25 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1972_25_a7/ %G ru %F ZNSL_1972_25_a7