%0 Journal Article %A Thomas Peternell %A Frédéric Capana %T 4-folds with numerically effective tangent bundles and second Betti numbers greater than one. %J Manuscripta mathematica %D 1993 %P 225-238 %V 79 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1993__79_1_155837/ %F MM2_1993__79_1_155837