Fluxon dynamics in long Josephson junctions with nontrivial current-phase relation A. Shutovskyi, V. Sakhnyuk and Y. Zolotaryuk Eur. Phys. J. B, 95 8 (2022) 134 Published online: 23 August 2022 DOI: 10.1140/epjb/s10051-022-00397-8