Hamiltonian dynamics and Faddeev–Jackiw formulation of 3D gravity with a Barbero–Immirzi like parameter Alberto Escalante and J. Manuel-Cabrera Eur. Phys. J. C, 77 5 (2017) 303 Published online: 12 May 2017 DOI: 10.1140/epjc/s10052-017-4862-1