TY - JOUR AU - Michał Stukow TI - The extended mapping class group is generated by 3 symmetries JO - Comptes Rendus. Mathématique PY - 2004 SP - 403 EP - 406 VL - 338 IS - 5 PB - Elsevier DO - 10.1016/j.crma.2003.12.028 LA - en ID - CRMATH_2004__338_5_403_0 ER -