Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1991_49_3_a24, author = {V. \'E. Shpil'rain}, title = {Some applications of free differential calculus in group theory}, journal = {Matemati\v{c}eskie zametki}, pages = {156--157}, publisher = {mathdoc}, volume = {49}, number = {3}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1991_49_3_a24/} }
V. É. Shpil'rain. Some applications of free differential calculus in group theory. Matematičeskie zametki, Tome 49 (1991) no. 3, pp. 156-157. http://geodesic.mathdoc.fr/item/MZM_1991_49_3_a24/