References

1

J. F. Donoghue and B. R. Holstein, Phys. Rev. D25 (1982) 2015.

2

M. L. Cohen and P. W. Anderson, in Superconductivity in d- and f-Band Metals, ed. D. H. Douglas (AIP, New York, 1972).

3

H. Krebs, Fundamentals of Inorganic Crystal Chemistry (McGraw-Hill, London, 1968), p. 160.

Alternatively, references may be cited in the text by bracketing the surname(s) of the author(s) and year of publication (e.g. Donoghue and Holstein 1982). If this style is adopted, the list of references need not be numbered but should be arranged by surname of the first author and year of publication of each work. (For example, Stone, F. and Smith, H. 1990 precedes Stone, F. 1992.)