%0 Journal Article
%A Rolf Pütter
%T On the nodal lines of second eigenfunctions of the fixed membrane problem.
%J Commentarii mathematici Helvetici
%D 1990
%P 96-103
%V 65
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140185/
%F CMH_1990__65_3_140185