%0 Journal Article %A P.M.H. Wilson %T The existence of elliptic fibre space structures on Calabi-Yau threefolds. %J Mathematische Annalen %D 1994 %P 693-704 %V 300 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1994__300_2_165276/ %F MAN_1994__300_2_165276