1. F. L. Garsaid, ?On Braid groups and other groups,? Matematika,14, No. 4, 117?132 (1970).
2. E. Artin, ?Theory of braids,? Ann. Math.,48, 101?126 (1947).
3. G. G. Gurzo, ?Systems of generators for normalizers of some elements of braid groups,? Akad. Nauk SSSR, Ser. Mat.,48, No. 3, 476?519 (1984).
4. G. S. Makanin, ?On normalizers of braid groups,? Mat. Sb.,86, No. 2, 171?179 (1971).
5. J. McCool, ?On reducible braids,? in: Word Problems. II, North-Holland (1980), pp. 261?295.