%0 Journal Article %A L. S. Klabukova %T On the differential operator of problems of the theory of momentless elastic shells of non-negative Gaussian curvature %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1981 %P 1517-1532 %V 21 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1981_21_6_a16/ %G ru %F ZVMMF_1981_21_6_a16