%0 Journal Article
%A Derrick, W.R.
%T Nonlinear functional Sturm-Liouville equations
%J Portugaliae mathematica
%D 1977
%P 227-237
%V 36
%N 3-4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1977__36_3-4_115318/
%G en
%F PORMA_1977__36_3-4_115318