%0 Journal Article %A O. I. Egorushkin %A K. V. Safonov %T Analitic approach to context-free languages in the Greibach normal form %J Prikladnaâ diskretnaâ matematika %D 2009 %P 73-74 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDM_2009_10_a37/ %G ru %F PDM_2009_10_a37