See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/264954413 Periodic Solutions of Symmetric Elliptic Singular Systems Article in Advanced Nonlinear Studies · May 2005 DOI: 10.1515/ans-2005-0202 CITATIONS 2 READS 22 2 authors: Flaviano Battelli Università Politecnica delle Marche 72 PUBLICATIONS 453 CITATIONS SEE PROFILE Michal Feckan Comenius University in Bratislava 211 PUBLICATIONS 1,535 CITATIONS SEE PROFILE All content following this page was uploaded by Michal Feckan on 25 August 2014. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately.