TY - JOUR AU - V. N. Zhelyabin TI - Addition to Block's theorem and to Popov's theorem on differentially simple algebras JO - Sibirskie èlektronnye matematičeskie izvestiâ PY - 2019 SP - 1375 EP - 1384 VL - 16 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SEMR_2019_16_a23/ LA - ru ID - SEMR_2019_16_a23 ER -