%0 Journal Article
%A Marek, Ivo
%T On the minimax principle for $K$-positive operators (Preliminary communication)
%J Commentationes Mathematicae Universitatis Carolinae
%D 1966
%P 109-112
%V 07
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1966__7_1_a5/
%G en
%F CMUC_1966__7_1_a5