Effects of nonlinear wave coupling: Accelerated solitons - Boomerons: From curiosity to nonlinear opticsA. Degasperis, M. Conforti, F. Baronio and S. WabnitzEur. Phys. J. Special Topics, 147 (2007) 233-252DOI: https://doi.org/10.1140/epjst/e2007-00211-y