%0 Journal Article %A S. G. Ovsepyan %T Certain homogeneous boundary-value problems for differential operators with constant coefficients %J Doklady Akademii Nauk %D 1961 %P 298-301 %V 139 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_139_2_a9/ %G ru %F DAN_1961_139_2_a9