2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/90988We present a prescription for obtaining Bell's inequalities for N>2 observers involving more than two alternative measurement settings. We give examples of some families of such inequalities. The inequalities are violated by certain classes of states for which all standard Bell's inequalities with two measurement settings per observer are satisfied.4 pages, RevTeX4Quantum Physicstext