2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/115662We discuss integrability of normal field equations of arbitrary parametrised Bianchi surfaces. A novel geometric definition of Bianchi surfaces is presented as well as Bäcklund transformation for the normal field equations in arbitrary chosen surface parametrization.Exactly Solvable and Integrable SystemsPattern Formation and Solitonstext