@article{CMH_1975__50_139608, author = {Timothy Lance}, title = {Free {Cyclic} {Actions} on {Manifolds.}}, journal = {Commentarii mathematici Helvetici}, pages = {59--80}, year = {1975}, volume = {50}, zbl = {0299.57024}, url = {http://geodesic.mathdoc.fr/item/CMH_1975__50_139608/} }