%0 Journal Article %A X. Rong %T The Existence of Polarized F-structure on Volume Collapsed 4-manifolds. %J Geometric and functional analysis %D 1993 %P 474-501 %V 3 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/GFA_1993__3_6_58143/ %F GFA_1993__3_6_58143