1. R. Defay, I. Prigogine, A. Bellemans and D.H. Everett, Surface tension and adsorption, Wiley, New York, 1966
2. J. Friedel, M.C. Desjonqueres, Catalyse par les metaux, B. Imelik editor, C.N.R.S. Lyon, 1984.
3. J.C. Joud, J.L. Bocquet, M. Gerl, Metallic Multilayers, Ecole d'Ete du C.N.R.S., Aussois 1989, Material Sci Forum 59-60 (1990), Trans. Tech. Publication.
4. J. Friedel, Advanc. Phys. 3 (1954), 446.
5. M.P. Seah, J. Catal. 57 (1979), 450.