%0 Journal Article
%A Shapour Heidarkhani
%T Non-trivial solutions for a class of $(p_1,\dots ,p_n)$-biharmonic
 systems with Navier boundary conditions
%J Annales Polonici Mathematici
%D 2012
%P 65-76
%V 105
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap105-1-6/
%R 10.4064/ap105-1-6
%G en
%F 10_4064_ap105_1_6