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@article{TRSPY_1955_44_a0, author = {P. S. Novikov}, title = {On the algorithmic unsolvability of the word problem in group theory}, journal = {Informatics and Automation}, pages = {3--143}, publisher = {mathdoc}, volume = {44}, year = {1955}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1955_44_a0/} }
P. S. Novikov. On the algorithmic unsolvability of the word problem in group theory. Informatics and Automation, On the algorithmic unsolvability of the word problem in group theory, Tome 44 (1955), pp. 3-143. http://geodesic.mathdoc.fr/item/TRSPY_1955_44_a0/