@article{IM2_1968_2_1_a9, author = {P. S. Novikov and S. I. Adian}, title = {Infinite periodic groups. {I}}, journal = {Izvestiya. Mathematics }, pages = {209--236}, publisher = {mathdoc}, volume = {2}, number = {1}, year = {1968}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IM2_1968_2_1_a9/} }