TY  - JOUR
AU  - Borwein, J. M.
AU  - Théra, M.
TI  - Sandwich Theorems for Semicontinuous Operators
JO  - Canadian mathematical bulletin
PY  - 1992
SP  - 463
EP  - 474
VL  - 35
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1992-061-7/
DO  - 10.4153/CMB-1992-061-7
ID  - 10_4153_CMB_1992_061_7
ER  -