@article{DOCMA_2007__12__a4,
     author = {Biswas, Indranil and Huisman, Johannes},
     title = {Rational real algebraic models of topological surfaces},
     journal = {Documenta mathematica},
     pages = {549--567},
     publisher = {mathdoc},
     volume = {12},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2007__12__a4/}
}