2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38069This talk reviews the latest measurements of the proton, Pomeron and photon structure functions. These measurements, especially at low $x$ and/or low $Q^2$ lead to new insight into the picture of hadronic interactions.Rapporteur talk at the XXVIII ICHEP, July 1996, Warsaw, Poland, 16 pages, 22 figuresHigh Energy Physics - ExperimentHigh Energy Physics - Phenomenologytext