2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/3775In this talk, I will illustrate how one can use the cosmic microwave background anisotropy measurements, in order to test theoretical models aiming at describing the early universe.6 pages, LaTeX file and one figure. Work presented during the Cosmo 01 International Conference (Rovaniemi, Finland)Astrophysicstext