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2. F. Scandonne and L. Ballerini, Nuovo Cimento A 3, 81 (1946).
3. M. I. Abaev, Ellipsometry is the Surface Investigation Method (Nauka, Novosibirsk, 1983), p. 7 [in Russian].
4. V. I. Pshenitsyn and I. A. Khramtsovskii, in Ellipsometry: Theory, Methods, Applications (Nauka, Novosibirsk, 1987), p. 8 [in Russian].
5. V. A. Antonov, V. I. Pshenitsyn, and I. A. Khramtsovskii, Opt. Spectrosc. 62, 493 (1987).