%0 Journal Article %A Jesús Álvarez López %T On the first secondary invariant of Molino's central sheaf %J Annales Polonici Mathematici %D 1996 %P 253-265 %V 64 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-64-3-253-265/ %R 10.4064/ap-64-3-253-265 %G en %F 10_4064_ap_64_3_253_265