%0 Journal Article %A Gilles Courtois %A Bruno Colbois %T A Note on the First Nonzero Eigenvalue of the Laplacian Acting of P-Forms. %J Manuscripta mathematica %D 1990 %P 143-160 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1990__68_2_155520/ %F MM2_1990__68_2_155520