%0 Journal Article %A Claudia Maria Chanu %A Luca Degiovanni %A Giovanni Rastelli %T Extended Hamiltonians, Coupling-Constant Metamorphosis and the Post–Winternitz System %J Symmetry, integrability and geometry: methods and applications %D 2015 %V 11 %U http://geodesic.mathdoc.fr/item/SIGMA_2015_11_a93/ %G en %F SIGMA_2015_11_a93