TY - JOUR AU - L. I. Danilov TI - Absolute Continuity of the Spectrum of a Periodic Schr\"odinger Operator JO - Matematičeskie zametki PY - 2003 SP - 49 EP - 62 VL - 73 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2003_73_1_a4/ LA - ru ID - MZM_2003_73_1_a4 ER -