2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/34707We look for necessary conditions such that minimally coupled scalar-tensor theory with a massive scalar field and a perfect fluid in the Bianchi type I model isotropises. Then we derive the dynamical asymptotical properties of the Universe.13 pagesGeneral Relativity and Quantum CosmologyIsotropisation of the minimally coupled scalar-tensor theory with a massive scalar field and a perfect fluid in the Bianchi type I modeltext