@article{1077308169, author = {Roe, John}, title = {On the quasi-isometry invariance of $L^2$ Betti numbers}, journal = {Duke Math. J.}, volume = {58}, number = {1}, year = {1989}, pages = { 765-783}, language = {en}, url = {http://dml.mathdoc.fr/item/1077308169} }
Roe, John. On the quasi-isometry invariance of $L^2$ Betti numbers. Duke Math. J., Tome 58 (1989) no. 1, pp. 765-783. http://gdmltest.u-ga.fr/item/1077308169/