2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54707We review the unified description of massless spinning particles, living in spaces of constant curvature, in the framework of the pseudoclassical approach with a gauged $N$-extended worldline supersymmetry and a local $O(N)$ invariance.5 pages, LaTeX, sprocl style, Talk given at the 2nd International Sakharov Conference on Physics, Lebedev Physical Institute, Moscow, May 20-24, 1996High Energy Physics - Theorytext