Coherent structure modification by a shear acting at the surface of a turbulent open channelSergio Chibbaro, Jair Reyes, Maurice Rossi, Alfredo Soldati and Francesco ZontaEur. Phys. J. Plus, 138 9 (2023) 799DOI: https://doi.org/10.1140/epjp/s13360-023-04401-7