Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1992_51_3_a13, author = {S. V. Rychkov}, title = {Almost free groups in varieties}, journal = {Matemati\v{c}eskie zametki}, pages = {101--105}, publisher = {mathdoc}, volume = {51}, number = {3}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1992_51_3_a13/} }
S. V. Rychkov. Almost free groups in varieties. Matematičeskie zametki, Tome 51 (1992) no. 3, pp. 101-105. http://geodesic.mathdoc.fr/item/MZM_1992_51_3_a13/