%0 Journal Article %A Chien, Tran Quoc %T Fenchel-Lagrange duality in vector fractional programming via abstract duality scheme %J Kybernetika %D 1986 %P 299-319 %V 22 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1986__22_4_a1/ %G en %F KYB_1986__22_4_a1