@article{DA_2005_12_3_a0,
     author = {A. E. Borisov},
     title = {On the properties of a stochastic context-free language generated by a grammar with two classes of nonterminal symbols},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {3--31},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2005_12_3_a0/}
}