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@article{MZ_1992__209_2_174356, author = {Stephen P. Humphries}, title = {An approach to automorphisms of free groups and braids via transvections.}, journal = {Mathematische Zeitschrift}, pages = {131--152}, publisher = {mathdoc}, volume = {209}, number = {2}, year = {1992}, zbl = {0757.20006}, url = {http://geodesic.mathdoc.fr/item/MZ_1992__209_2_174356/} }
Stephen P. Humphries. An approach to automorphisms of free groups and braids via transvections.. Mathematische Zeitschrift, Tome 209 (1992) no. 2, pp. 131-152. http://geodesic.mathdoc.fr/item/MZ_1992__209_2_174356/