%0 Journal Article %A M. B. Abrosimov %A O. V. Modenova %T On properties of minimal extensions of orgraphs %J Prikladnaâ diskretnaâ matematika %D 2011 %P 84-85 %N 13 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDM_2011_13_a42/ %G ru %F PDM_2011_13_a42