2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6079If neutrinos produced in astrophysics sources oscillate, neutrino telescopes can have a chance to detect signals from tau-neutrinos. We present an estimate of the 'double bang' event rate produced by tau neutrinos in cubic kilometer scale detectors.Contribution to the 28th International Cosmic Ray Conference, Tsukuba, Japan, July 31 - August 7, 2003, 4 pages, 2 .eps figures, uses tsukuba.styAstrophysicstext