TY - JOUR AU - Duggal, B. P. TI - Perturbations of operators satisfying a local growth condition. JO - Extracta mathematicae PY - 2008 SP - 29 EP - 42 VL - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EXMATH_2008_2008_1_a2/ LA - en ID - EXMATH_2008_2008_1_a2 ER -