TY - JOUR AU - Andreas M. Hinz TI - Asymptotic Behavior of Solutions of - ...v + qv = ...v and the Distance of ...to the Essential Spectrum. JO - Mathematische Zeitschrift PY - 1987 SP - 173 EP - 182 VL - 194 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1987__194_173825/ ID - MZ_1987__194_173825 ER -