1. https://en.sif.it/courses/fermi_school
2. W. Brandt and A. Dupasquier (Eds.) Proceeding of the International School of Physics “Enrico Fermi”, Course LXXIII: “Positron Solid State Physics” (North Holland, Amsterdam, 1985).
3. A. Dupasquier and A. P. Mills (Eds.) Proceeding of the International School of Physics “Enrico Fermi”, Course CXXV: “Positron Spectroscopy of Solids” (IOS, Amsterdam, 1995).
4. R. S. Brusa, A. Dupasquier and A. P. Mills (Eds.) Proceeding of the International School of Physics “Enrico Fermi”, Course CLXXIV: “Physics with Many Positrons” (IOS, Amsterdam, 2010).
5. QUASI-POSITRONIUM IN METALS