%0 Journal Article %A M. B. Abrosimov %T On minimal edge $k$-extensions of oriented stars %J Prikladnaâ diskretnaâ matematika %D 2010 %P 67-68 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDM_2010_12_a31/ %G ru %F PDM_2010_12_a31