1. J. H. Hildebrand and R. L. Scott, Regular Solutions (Prentice-Hall, Englewood Cliffs, N.J., 1962), Chap. 6.
2. J. H. Hildebrand, J. M. Prausnitz, and R. L. Scott, Regular and Related Solutions (Van Nostrand Reinhold, New York, 1970), Chaps. 6 and 8.
3. H. C. Longuet-Higgins, Proc. R. Soc. (Lond.) A205:247 (1951).
4. D. Cook and H. C. Longuet-Higgins, Proc. R. Soc. (Lond.) A209:28 (1951).
5. W. B. Brown and H. C. Longuet-Higgins, Proc. R. Soc. (Lond.) A209:416 (1951).