%0 Journal Article %A A. E. Merzon %T On the solvability of differential equations with constant coefficients in a cone %J Doklady Akademii Nauk %D 1973 %P 285-288 %V 211 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_211_2_a5/ %G ru %F DAN_1973_211_2_a5