@article{ZVMMF_1976_16_4_a18,
     author = {Yu. P. Babinov},
     title = {Two classes of noncontractive precedence grammars},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1027--1037},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1976_16_4_a18/}
}