TY - JOUR AU - McDonald, G. AU - Sundberg, C. TI - On the Spectra of Unbounded Subnormal Operators JO - Canadian journal of mathematics PY - 1986 SP - 1135 EP - 1148 VL - 38 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1986-057-x/ DO - 10.4153/CJM-1986-057-x ID - 10_4153_CJM_1986_057_x ER -