%0 Journal Article %A Yu. A. Kotov %T Comparative analysis of four methods for identifying letters of texts %J Informacionnye tehnologii i vyčislitelnye sistemy %D 2019 %P 41-56 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ITVS_2019_3_a3/ %G ru %F ITVS_2019_3_a3