%0 Journal Article
%A Antunes, Pedro
%A Freitas, Pedro
%T New bounds for the principal Dirichlet eigenvalue of planar regions.
%J Experimental mathematics
%D 2006
%P 333-342
%V 15
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EXMA_2006__15_3_225221/
%G en
%F EXMA_2006__15_3_225221