2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/142961A new approach extracting multi-parametric hydrodynamic reductions for the integrable hydrodynamic chains is presented. The Benney hydrodynamic chain is considered.Exactly Solvable and Integrable SystemsIntegrability of the Gibbons--Tsarev systemtext