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2. G. Somorjai, “Chemistry in Two Dimensions,” Cornell University, New York (1981).
3. G.C. Bond, “Heterogeneous Catalysis,” 2nd ed., Oxford University, Oxford (1987).
4. I.M. Campbell, “Catalysis at Surfaces,” Chapman and Hall, Ltd., New York (1988).
5. R.A. van Santen, “Theoretical Heterogeneous Catalysis,” World Scientific, Singapore (1991).