%0 Journal Article %A L. R. Volevič %T An energy method in the Cauchy problem for differential operators that are correct in the sense of I. G.  Рetrovskiĭ %J Trudy Moskovskogo matematičeskogo obŝestva %D 1974 %P 147-187 %V 31 %U http://geodesic.mathdoc.fr/item/MMO_1974_31_a5/ %G ru %F MMO_1974_31_a5