@article{AIF_2008__58_1_1_0,
     author = {Fichou, Goulwen},
     title = {Equivariant virtual {Betti} numbers},
     journal = {Annales de l'Institut Fourier},
     pages = {1--27},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {58},
     number = {1},
     year = {2008},
     doi = {10.5802/aif.2342},
     zbl = {1142.14003},
     mrnumber = {2401214},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.2342/}
}