@article{IM_1985__81_143269, author = {Tomoyoshi Yoshida}, title = {The ..-invariant of hyperbolic 3-manifolds.}, journal = {Inventiones mathematicae}, pages = {473--514}, year = {1985}, volume = {81}, zbl = {0594.58012}, url = {http://geodesic.mathdoc.fr/item/IM_1985__81_143269/} }