%0 Journal Article %A Vajda, Igor %A Österreicher, Ferdinand %T Existence, uniqueness and evaluation of log-optimal investment portfolio %J Kybernetika %D 1993 %P 105-120 %V 29 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1993__29_2_a0/ %G en %F KYB_1993__29_2_a0