%0 Journal Article
%A Staněk, Svatoslav
%T On a criterion for the existence of at least four solutions of functional boundary value problems
%J Archivum mathematicum
%D 1997
%P 335-348
%V 33
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ARM_1997__33_4_a7/
%G en
%F ARM_1997__33_4_a7