2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43760The process e+ e- -> 3 jets offers the opportunity to measure the strong coupling constant. For an accurate determination, precise theoretical calculations are necessary. I will give an overview on the status of the next-to-next-to-leading order calculations.5 pages, talk given at the International Conference on Linear Colliders, Paris, 2004High Energy Physics - Phenomenologytext