@article{DA_2003_10_3_a2,
     author = {L. P. Zhil'tsova},
     title = {Patterns in trees used in the derivation of words in a stochastic context-free language and a lower bound on coding cost. {A} critical case},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {23--53},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2003_10_3_a2/}
}