TY  - JOUR
AU  - DRNOVšEK, ROMAN
TI  - A GENERALIZATION OF LEVINGER'S THEOREM TO POSITIVE KERNEL OPERATORS
JO  - Glasgow mathematical journal
PY  - 2003
SP  - 545
EP  - 555
VL  - 45
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089503001459/
DO  - 10.1017/S0017089503001459
ID  - 10_1017_S0017089503001459
ER  -