TY - JOUR AU - M. R. Faradzheva TI - $R$-identity of second-order elliptic operators with continuous coefficients JO - Differencialʹnye uravneniâ PY - 1999 SP - 1684 EP - 1690 VL - 35 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1999_35_12_a10/ LA - ru ID - DE_1999_35_12_a10 ER -