%0 Journal Article
%A DRNOVšEK, ROMAN
%T A GENERALIZATION OF LEVINGER'S THEOREM TO POSITIVE KERNEL OPERATORS
%J Glasgow mathematical journal
%D 2003
%P 545-555
%V 45
%N 3
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089503001459/
%R 10.1017/S0017089503001459
%F 10_1017_S0017089503001459