2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/200184We discuss theoretical aspects of parton distribution functions for very high energy scattering in relation with upcoming measurements in DIS and hadron-hadron collisions.Latex. 12 pages. Presented at IX Workshop on Nonperturbative QCD, IAP, Paris, 4-8 June 2007High Energy Physics - Phenomenologytext