doi:10.1007/s10569-010-9258-6engTresaco, E.Ferrer, S.Some ring-shaped potentials as a generalized 4-D isotropic oscillator. Periodic orbitsART-2010-72377A generalized integrable biparametric family of 4-D isotropic oscillators is proposed. It allows to treat in a unified way, Pöschl-Teller, Hartmann and other ring-shaped systems. This approach, based in the use of two canonical extensions, helps to simplify the studies of classical aspects of those systems. As an illustration, an analysis of the periodic solutions of those system is presented.2010http://zaguan.unizar.es/record/13049110.1007/s10569-010-9258-6http://zaguan.unizar.es/record/130491oai:zaguan.unizar.es:130491info:eu-repo/grantAgreement/ES/MICYT/ESP2005-07107info:eu-repo/grantAgreement/ES/MICYT/MTM2009-10767Celestial Mechanics and Dynamical Astronomy 107, 3 (2010), 337-352All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess