TY - JOUR AU - I. D. Evzerov TI - Domains of fractional powers of ordinary differential operators in spaces $L_p$ JO - Matematičeskie zametki PY - 1977 SP - 509 EP - 518 VL - 21 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1977_21_4_a7/ LA - ru ID - MZM_1977_21_4_a7 ER -