References
- AMERICAN SOCIETY OF BREWING CHEMISTS. Report of Subcommittee on Determination of Sodium and Potassium in Beer. Journal 35(3): 133(1977).
- AMERICAN SOCIETY OF BREWING CHEMISTS. Methods of Analysis (7th ed.). The Society: St. Paul, MN (1976).
- Dixon, W. J. Biometrics. 9: 74 (1953).
- Youden, W. J., and Steiner, E. H. Statistical Manual. Ass. Offic. Anal. Chem.: Washington, DC (1975).