@article{MO_2014_70_2_a2,
     author = {N. Grigorieva and A. Lyakhov},
     title = {Mathematical analysis of sorting e ectiveness of a complicated railway train},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {23--35},
     publisher = {mathdoc},
     volume = {70},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2014_70_2_a2/}
}