@article{PDMA_2017_10_a57,
     author = {O. I. Egorushkin and I. V. Kolbasina and K. V. Safonov},
     title = {An analogue of implicit mapping theorem to formal grammars},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {149--151},
     publisher = {mathdoc},
     number = {10},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2017_10_a57/}
}