%0 Journal Article %A V. N. Zhelyabin %T Addition to Block's theorem and to Popov's theorem on differentially simple algebras %J Sibirskie èlektronnye matematičeskie izvestiâ %D 2019 %P 1375-1384 %V 16 %I mathdoc %U http://geodesic.mathdoc.fr/item/SEMR_2019_16_a23/ %G ru %F SEMR_2019_16_a23