References
- Alderton, G., Bailey, G. F., Lewis, J.C., and Stitt, F. Anal. Chem. 26: 983 (1954).
- American Society of Brewing Chemists, Methods of Analysis (6th ed.), (HOPS — 5). The Society: Glenview, Illinois (1958).
- American Society of Brewing Chemists. Report of Subcommittee on Hop Analysis. Proc. 1959, p. 181.
- American Society of Brewing Chemists. Report of Subcommittee on Hop Analysis. Proc. 1969, p. 217.
- Beckley, R. F., and Jenkinson, P. Australian Sect. Inst. Brewing Proc. 1957, p. 46.
- Burton, J. S., and Stevens R. J. Inst. Brewing 71: 51 (1965).
- European Brewery Convention. Analytica (2nd ed.), pp. 51–52. Elsevier: New York (1963).
- Howard, G. A., and Martin, P. A. J. Inst. Brewing 70: 424 (1964).