Positronium formation in solid acetylacetonate complexes A.O. PORTO, A. MARQUES-NETTO, W.F MAGALHAES, C.F. CARVALHO and J.C. MACHADO J. Phys. IV France, 03 C4 (1993) C4-205-C4-208 DOI: 10.1051/jp4:1993429
