2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6960We have performed systematic frequency analysis of the LMC Cepheids observed by OGLE project. Several new types of pulsation behaviour are identified, including triple-mode and amplitude-modulated double-mode pulsations. In ~10% of the first overtone Cepheids we find low amplitude secondary periodicities corresponding to nonradial modes. This is the first evidence for excitation of nonradial oscillations in Classical Cepheid variables.4 pages, 2 figures, to appear in "Variable Stars in the Local Group", ASP Conference Series, eds. D. W. Kurtz & K. PollardAstrophysicstext