%0 Journal Article %A Nebeský, Ladislav %T Visibilities and sets of shortest paths in a connected graph %J Czechoslovak Mathematical Journal %D 1995 %P 563-570 %V 45 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1995.128548/ %R 10.21136/CMJ.1995.128548 %G en %F 10_21136_CMJ_1995_128548