%0 Journal Article %A A. L. Treskunov %T Exact~$L_p$ estimates for a~class of degenerate second order equations of elliptic type %J Zapiski Nauchnykh Seminarov POMI %D 1967 %P 232-249 %V 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1967_5_a9/ %G ru %F ZNSL_1967_5_a9