2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43399Notes of five lectures given at the 2003 European School of High-Energy Physics, Tsakhkadzor, Armenia, September 200352 pages, 25 figures, latex, cernrep.cls; lectures at the 2003 European School of High-Energy Physics, Tsakhkadzor, Armenia, September 2003High Energy Physics - PhenomenologyQuantum Chromodynamics and Hadrons: an Elementary Introductiontext