Hamiltonian dynamics and Noether symmetries in Extended Gravity Cosmology S. Capozziello, M. Laurentis and S.D. Odintsov Eur. Phys. J. C, 72 7 (2012) 2068 Published online: 17 July 2012 DOI: 10.1140/epjc/s10052-012-2068-0