Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1981_30_4_a2, author = {G. A. Noskov}, title = {Primitive elements in a free group}, journal = {Matemati\v{c}eskie zametki}, pages = {497--500}, publisher = {mathdoc}, volume = {30}, number = {4}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1981_30_4_a2/} }
G. A. Noskov. Primitive elements in a free group. Matematičeskie zametki, Tome 30 (1981) no. 4, pp. 497-500. http://geodesic.mathdoc.fr/item/MZM_1981_30_4_a2/