@article{TDM_2006_9_a4,
     author = {G. I. Ivchenko and Yu. I. Medvedev},
     title = {Statistical inference for random substitutions with incomplete data},
     journal = {Trudy po diskretnoj matematike},
     pages = {66--76},
     publisher = {mathdoc},
     volume = {9},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TDM_2006_9_a4/}
}