@article{CRMATH_2002__335_12_1053_0,
     author = {Szepietowski, B{\l}a\.zej},
     title = {Mapping class group of a non-orientable surface and moduli space of {Klein} surfaces},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1053--1056},
     publisher = {Elsevier},
     volume = {335},
     number = {12},
     year = {2002},
     doi = {10.1016/S1631-073X(02)02617-1},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/S1631-073X(02)02617-1/}
}