%0 Journal Article %A Zelinka, Bohdan %T A Contribution to my Article: 'Introducing an Orientation into a Given Non-Directed Graph' %J Mathematica slovaca %D 1967 %P 142-145 %V 17 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1967__17_2_a7/ %G en %F MASLO_1967__17_2_a7