%0 Journal Article
%A Klimczak, Liliana
%T Two constant sign solutions for a nonhomogeneous Neumann boundary value problem
%J Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica
%D 2015
%N 14
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AUPCM_2015_14_a10/
%G en
%F AUPCM_2015_14_a10