@article{CRMATH_2003__336_9_763_0,
     author = {Clint McCrory and Adam Parusi\'nski},
     title = {Virtual {Betti} numbers of real algebraic varieties},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {763--768},
     publisher = {Elsevier},
     volume = {336},
     number = {9},
     year = {2003},
     doi = {10.1016/S1631-073X(03)00168-7},
     language = {en},
}