TY - JOUR AU - K. Kh. Boimatov TI - Distribution of eigenvalues of degenerate elliptic operators JO - Doklady Akademii Nauk PY - 1979 SP - 521 EP - 524 VL - 248 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1979_248_3_a0/ LA - ru ID - DAN_1979_248_3_a0 ER -