References
- American Society of Brewing Chemists. Report of the Subcommittee on Application of Atomic Absorption Spectrophotometry to Analytical Problems in Brewing Chemistry. Proc. 1970, p. 212.
- American Society of Brewing Chemists. Report of the Subcommittee on Application of Atomic Absorption Spectrophotometry to Analytical Problems in Brewing Chemistry. Proc. 1971. p. 303.
- American Society of Brewing Chemists. Report of the Subcommittee on Application of Atomic Absorption Spectrophotometry to Analytical Problems in Brewing Chemistry. Proc. 1972, p. 133.
- Brauwissenschaft 25 (II): 341 (1972).