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2. A.C.S. Symposium Series;RM Barrer,1988
3. Brumauer, S. (1948) The Adsorption of Gases & Vapours, Oxford University Press, p.150.
4. Gibbs, J.W. (1948) Collected Works, Yale University Press, Vol.1, pp.105–115.
5. Zdhanov, S.P. and Samuelevich, N.N. (1980) Proc. 5th Internat. Conference on Zeolites, Ed. L.V.C. Rees, Heyden, p.75.