%0 Journal Article %A V. Zh. Dumanyan %T On boundedness of a class of first order linear differential operators in the space of $(n-1)$-dimensionally continuous functions %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2013 %P 8-14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2013_2_a1/ %G en %F UZERU_2013_2_a1