%0 Journal Article %A N. Grigorieva %A A. Lyakhov %T Mathematical analysis of sorting e ectiveness of a complicated railway train %J Matematičeskoe obrazovanie %D 2014 %P 23-35 %N 2 %U http://geodesic.mathdoc.fr/item/MO_2014_2_a2/ %G ru %F MO_2014_2_a2