2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42687The quarkonium data suggest a qualitatively new production mechanism, enhancing the rate of the quarkonia produced in the fragmentation region of an incoming coloured particle.6 pages, 1 figure, talk given at DIS 2003, St. Petersburg, 23-27 April 2003High Energy Physics - Phenomenologytext