2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148030We give a brief overview of the perturbative QCD description of the proton deep-inelastic structure function F2(x, Q2) at small x. We discuss GLAP and BFKL approaches, and then we review progress towards a more unified treatment.4 pages in LATEX, using qcdparis.sty. Four figures included in tarred, compressed, and uuencoded file. Replaced in correct format for producing postscript versionHigh Energy Physics - Phenomenologytext