%0 Journal Article
%A Liu, Wei
%A Jia, Gao
%A Guo, Lu-Quian
%T Multiplicity of solutions to the sum of polyharmonic equations with critical Sobolev exponents
%J Electronic Journal of Differential Equations
%D 2015
%V 2015
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2015__2015__a15/
%G en
%F EJDE_2015__2015__a15