@article{DA_2004_11_3_a1,
     author = {R. M. Kolpakov},
     title = {Closed classes of finite distributions of rational probabilities},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {16--31},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2004_11_3_a1/}
}