%0 Journal Article
%A E. Śliwiński
%T On some oscillation problems for elliptic equations of fourth order
%J Commentationes Mathematicae
%D 1968
%P  199-203
%V 11
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/cm.v11i1.5617/
%R 10.14708/cm.v11i1.5617
%G pl
%F 10_14708_cm_v11i1_5617