Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1980__21_2_a17, author = {Jackett, David R.}, title = {The nil-degree of a torsion-free {Abelian} group}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {393--406}, publisher = {mathdoc}, volume = {21}, number = {2}, year = {1980}, mrnumber = {580694}, zbl = {0436.20034}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1980__21_2_a17/} }
Jackett, David R. The nil-degree of a torsion-free Abelian group. Commentationes Mathematicae Universitatis Carolinae, Tome 21 (1980) no. 2, pp. 393-406. http://geodesic.mathdoc.fr/item/CMUC_1980__21_2_a17/