TY - JOUR AU - P. S. Novikov TI - On the algorithmic unsolvability of the word problem in group theory JO - Informatics and Automation PY - 1955 SP - 3 EP - 143 VL - 44 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_1955_44_a0/ LA - ru ID - TRSPY_1955_44_a0 ER -