@misc{MO_2007_a10,
     title = {Brief {Information} on {Tournaments}},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {66--68},
     publisher = {mathdoc},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2007_a10/}
}