1. Proceedings of the Second International Meeting on Small Particles and Inorganic Clusters, Lausanne 1980, published in Sur. Sci. 106 (1981).
2. 8th International Symposium on Molecular Beams, Cannes 1981, book of abstracts.
3. Proceedings of the 13th International Symposium on Rarefied Gas Dynamics, Novosibirsk 1982.
4. See for example: R. C. Baetzold. and R. E. Mack, J. Chem. Phys. 62, 1513 (1975), D. R. Salahub and R. P. Messmer, Phys. Rev. B16, 2526 (1977).
5. D. Tománek, S. Mukherjee and H. Bennemann, Phys. Rev. B28, July (1983).