Dynamics of solitons in the one-dimensional nonlinear Schrödinger equation Tobias Ilg, Ramona Tschüter, Andrej Junginger, Jörg Main and Günter Wunner Eur. Phys. J. D, 70 11 (2016) 232 Published online: 03 November 2016 DOI: 10.1140/epjd/e2016-70338-7