2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36976The studies of colour reconnection in e+e- -> WW -> 4 jets events at LEP are reviewed. It is shown that the analysis of the particle- and energy flow between jets is sensitive to realistic model predictions. The effects on the W mass measurement are discussed.LaTeX, 6 pages, 3 postscript figuresHigh Energy Physics - Experimenttext