%0 Journal Article
%A Luisi,  Valeria
%T Light rays in static spacetimes with critical asymptotic behavior: a variational approach
%J Electronic journal of differential equations
%D 2006
%V 2006
%U http://geodesic.mathdoc.fr/item/EJDE_2006__2006__a105/
%G en
%F EJDE_2006__2006__a105