@article{CRMATH_2004__338_5_403_0,
     author = {Micha{\l} Stukow},
     title = {The extended mapping class group is generated by 3 symmetries},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {403--406},
     publisher = {Elsevier},
     volume = {338},
     number = {5},
     year = {2004},
     doi = {10.1016/j.crma.2003.12.028},
     language = {en},
}