o-Ps annihilation parameters in Pt, 5% Pt-on-charcoal, Pd and 5% Pd-on-charcoal powders J. L. CIOTTONE, F. LANDER et D. LECLAIRJ. Phys. IV France, 03 C4 (1993) C4-185-C4-191DOI: https://doi.org/10.1051/jp4:1993425
