@article{GDZPPN002112175,
title = {Relations among the squares of the generators of the braid groups.},
journal = {Inventiones mathematicae},
volume = {115},
year = {1994},
pages = {525-530},
zbl = {0822.20040},
url = {http://dml.mathdoc.fr/item/GDZPPN002112175}
}
Collins, Donald J. Relations among the squares of the generators of the braid groups.. Inventiones mathematicae, Tome 115 (1994) pp. 525-530. http://gdmltest.u-ga.fr/item/GDZPPN002112175/