Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MM2_1997__93_4_156313, author = {W. Herfort and P. Zalesskii}, title = {Finitely {Generated} pro-2 {Groups} with a free subgroup of {Index} 2.}, journal = {Manuscripta mathematica}, pages = {457--464}, publisher = {mathdoc}, volume = {93}, number = {4}, year = {1997}, zbl = {0951.20018}, url = {http://geodesic.mathdoc.fr/item/MM2_1997__93_4_156313/} }
W. Herfort; P. Zalesskii. Finitely Generated pro-2 Groups with a free subgroup of Index 2.. Manuscripta mathematica, Tome 93 (1997) no. 4, pp. 457-464. http://geodesic.mathdoc.fr/item/MM2_1997__93_4_156313/