@article{AUM_2010_54_2_a2, author = {Perez Garcia, Victor and Fetter Nathansky, Helga}, title = {Fixed points of periodic mappings in {Hilbert} spaces}, journal = {Annales Universitatis Mariae Curie-Sk{\l}odowska. Mathematica }, publisher = {mathdoc}, volume = {54}, number = {2}, year = {2010}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AUM_2010_54_2_a2/} }