@article{MAN_1993__296_4_165113, author = {Carla Farsi and Neil Watling}, title = {Symmetrized non-commutative tori.}, journal = {Mathematische Annalen}, pages = {739--742}, publisher = {mathdoc}, volume = {296}, number = {4}, year = {1993}, zbl = {0791.46048}, url = {http://geodesic.mathdoc.fr/item/MAN_1993__296_4_165113/} }