%0 Journal Article
%A Shmuel Friedland
%T Extremal eigenvalue problems defined on conformal classes of compact Riemannian manifolds.
%J Commentarii mathematici Helvetici
%D 1979
%P 494-507
%V 54
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1979__54_139799/
%F CMH_1979__54_139799