TY  - JOUR
AU  - Coburn, L. A.
AU  - Lebow, A.
TI  - Approximation by Fredholm operators in the metric space of closed operators
JO  - Rendiconti del Seminario Matematico della Università di Padova
PY  - 1966
SP  - 217
EP  - 222
VL  - 36
IS  - 2
PB  - Seminario Matematico of the University of Padua
UR  - http://www.numdam.org/item/RSMUP_1966__36_2_217_0/
LA  - en
ID  - RSMUP_1966__36_2_217_0
ER  -