Parametrizations of three-body hadronic B- and D-decay amplitudes Benoît Loiseau, Diogo Boito, Jean-Pierre Dedonder, Bruno El-Bennich, Rafel Escribano, Robert Kamiński and Leonard Leśniak EPJ Web Conf., 202 (2019) 06014 Published online: 13 March 2019 DOI: 10.1051/epjconf/201920206014