1. Colloque Weyl I, “Metal-Ammonia Solutions”, (Eds. G. Lepoutre and M. J. Sienko), 1964, W. A. Benjamin, New York.
2. Colloque Weyl II, “Metal-Ammonia Solutions”, (Eds. J. J. Lagowski and M. J. Sienko), 1970, Butterworths, London.
3. Colloque Weyl III, “Electrons in Fluids”, (Eds. J. Jortner and N. R. Kestner) 1973, Springer-Verlag, Heidelberg.
4. Colloque Weyl IV, “Electrons in Fluids - The Nature of Metal-Ammonia Solutions”, 1975, J. Phys. Chem., 79, No 26.
5. Colloque Weyl V, “Excess Electrons and Metal-Ammonia Solutions”, 1980, J. Phys. Chem., 84, pp. 1065.