@article{CMH_1987__62_140093,
     author = {Shmuel Weinberger},
     title = {Free {Q/Z} {Actions.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {450--464},
     publisher = {mathdoc},
     volume = {62},
     year = {1987},
     url = {http://geodesic.mathdoc.fr/item/CMH_1987__62_140093/}
}