2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45861I review a recent progress in understanding the Regge asymptotics in perturbative QCD including the behaviour of the structure functions of DIS at small Bjorken $x$.Plenary talk given at the Workshop on Deep Inelastic Scattering and QCD, Paris, April 1995. 8 pages, LaTeX style, uses qcdparis.sty (appended at end)High Energy Physics - Phenomenologytext