2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/184974A partisan review of some of the most important $γγ$ channels accessible at LEP 2, with special stress on the measurement of the photon structure function $F_{2}^γ$ and on associated problems with Monte Carlo modelling.7 pages including 5 figures. Invited talk given at the LEP2 Phenomenology Workshop, Oxford, U.K., 14 April 1997High Energy Physics - Experimenttext