%0 Journal Article %A Ruth Gornet %T The marked length spectrum vs. the Laplace spectrum on forms on Riemannian nilmanifolds. %J Commentarii mathematici Helvetici %D 1996 %P 297-329 %V 71 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1996__71_2_140401/ %F CMH_1996__71_2_140401