Theoretical Progress in QCD at small $x$

Abstract

I review a recent progress in understanding the Regge asymptotics in perturbative QCD including the behaviour of the structure functions of DIS at small Bjorken $x$.

Comments: 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)