@article{MZM_1986_40_3_a13,
     author = {G. M. Gutin},
     title = {The radii of $n$-partite tournaments},
     journal = {Matemati\v{c}eskie zametki},
     pages = {414--417},
     year = {1986},
     volume = {40},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1986_40_3_a13/}
}