@article{10_1017_S0017089500006510,
     author = {Napthine, A. K. and Pride, Stephen J.},
     title = {On generalized braid groups},
     journal = {Glasgow mathematical journal},
     pages = {199--209},
     year = {1986},
     volume = {28},
     number = {2},
     doi = {10.1017/S0017089500006510},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006510/}
}