%0 Journal Article %A G. S. Tseitin %T A reduced form of normal algorithms and a linear speed-up theorem %J Zapiski Nauchnykh Seminarov POMI %D 1971 %P 234-242 %V 20 %U http://geodesic.mathdoc.fr/item/ZNSL_1971_20_a21/ %G ru %F ZNSL_1971_20_a21