@article{CMH_1989__64_1_140154, author = {K.-H. Dovermann and M. Masuda}, title = {Rigid versus non-rigid cyclic actions.}, journal = {Commentarii mathematici Helvetici}, pages = {269--287}, publisher = {mathdoc}, volume = {64}, number = {1}, year = {1989}, zbl = {0694.57025}, url = {http://geodesic.mathdoc.fr/item/CMH_1989__64_1_140154/} }