%0 Journal Article %A Nebeský, Ladislav %T The directed geodetic structure of a strong digraph %J Czechoslovak Mathematical Journal %D 2004 %P 1-8 %V 54 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2004__54_1_a0/ %G en %F CMJ_2004__54_1_a0