2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/194309The Parametrized Post-Newtonian expansion of gravitational theories with a scalar field coupled to the Gauss-Bonnet invariant is performed and confrontation of such theories with Solar system experiments is discussed.4 pages; typos corrected, published versionGeneral Relativity and Quantum CosmologyAstrophysicsHigh Energy Physics - Theorytext