References
- American Society of Brewing Chemists. Report of Subcommittee on Evaluation of Hop Extracts. Am. Soc. Brew. Chem., Proc. 1969.
- Rigby, F. L. and Stoffer, J. L., “Analysis of Non-Isomerized Hop Extracts” Am. Soc. Brew. Chem., Proc. 1967, 110–118.
- Verzele, M., “Progress in the Analysis of Hop Extracts and Beer Bitter Substances”, 1969. Paper submitted for the “Felipe Osborne Award.”
- Rigby, F.L. and Stoffer, J. L., John I. Haas Inc. private communication, August 6th, 1969.
- Hansen, G.L., Pfizer, Inc., private communication, October 7th, 1969.
- Dixon, W. J., “Processing Data for Outliers.” Biometrics 9, 74 (1953).