2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37187The recent results from the Soudan 2, MACRO and SuperKamiokande experiments on atmospheric neutrino oscillations are summarized and discussed. Some features of possible future atmospheric neutrino experiments are presented.11 pages, 11 EPS figures included with epsfig, uses article.sty. Lectures given at the Sixth School on Non-Accelerator Astroparticle Physics, Trieste, Italy, 9-20 July 2001High Energy Physics - Experimenttext