TY - JOUR AU - C. Zenger TI - Positivity in Complex Spaces and Its Application to Gershgorin Discs. JO - Numerische Mathematik PY - 1984 SP - 67 EP - 74 VL - 44 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1984__44_132919/ ID - NUMA_1984__44_132919 ER -