%0 Journal Article
%A Jan Bochenek
%T Oscillation theorems and nodes of eigenfunctions of certain differential equations of the fourth order
%J Annales Polonici Mathematici
%D 1972
%P 21-28
%V 27
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap-27-1-21-28/
%R 10.4064/ap-27-1-21-28
%G en
%F 10_4064_ap_27_1_21_28