1. A.F. Wells, The Geometrical Basis of Crystal Chemistry: (a) Part 1, A.F. Wells, Acta Cryst. 7 (1954) 535. (b) Part 2, A.F. Wells, Acta Cryst. 7 (1954) 545. (c) Part 3, A.F. Wells, Acta Cryst. 7 (1954) 842. (d) Part 4, A.F. Wells, Acta Cryst. 7 (1954) 849. (e) Part 5, A.F. Wells, Acta Cryst. 8 (1955) 32. (f) Part 6, A.F. Wells, Acta Cryst. 9 (1956) 23. (g) Part 7, A.F. Wells, and R.R. Sharpe, Acta Cryst. 16 (1963) 857. (h) Part 8, A.F. Wells, Acta Cryst. 18 (1965) 894. (i) Part 9, A.F. Wells, Acta Cryst. B24 (1968) 50. (j) Part 10, A.F. Wells, Acta Cryst. B25 (1969) 1711. (k) Part 11, A.F. Wells, Acta Cryst. B28 (1972) 711. (l) Part 12, A.F. Wells, Acta Cryst. B32 (1976) 2619. (aa) A.F. Wells, Three Dimensional Nets and Polyhedra, 1st edn. (1976) (John Wiley and Sons Inc., New York, 1977). (bb) A.F. Wells, Further Studies of Three-dimensional Nets, American Crystallographic Association, Monograph Number 8, 1st edn. (American Crystallographic Association Press, 1979).
2. Waser J., McClanahan E.D. (1951). J. Chem. Phys. 19: 413
3. W.L. Bragg and W.H. Zachariasen, Zeit. f. Krist. 72 (1930) 518.
4. Liu A.Y., Cohen M.L. (1990). Phys. Rev. B 41(15): 10727
5. (a) M.J. Bucknum and R. Hoffmann, J. Am. Chem. Soc. 116 (1994) 11456.