TY - JOUR AU - R. V. Guseinov TI - Smoothness of solutions of a class of quasi-elliptic equations JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1992 SP - 10 EP - 14 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1992_6_a2/ LA - ru ID - VMUMM_1992_6_a2 ER -