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