TY - JOUR AU - M. Sh. Birman AU - M. Z. Solomyak TI - On the asymptotic spectrum of ``nonsmooth'' elliptic equations JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1971 SP - 69 EP - 70 VL - 5 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1971_5_1_a7/ LA - ru ID - FAA_1971_5_1_a7 ER -