1. Adams, D. O., K. E. Franke, and L. P. Christensen. 1990. “Elevated putrescine levels in grapevine leaves that display symptoms of potassium deficiency.” Am. J. Enol. Vitic. 41:121–125.
2. Adams, D. O., and C. Liyanage. 1991. “Modification of an enzymatic glutathione assay for determination of total glutathione in grapevine tissues.” Am. J. Enol. Vitic. 42:137–140.
3. Altman, H. (Ed.). 1987. Weinbau. Vienna: Österreichischer Agrarverlag.
4. Amerine, M. A., and A. J. Winkler. 1944. “Composition and quality of musts and wines of California grapes.” Hilgardia 15:493–676.
5. Amerine, M. A., and A. J. Winkler. 1963a. “California wine grapes: Composition and quality of their musts and wines.” Calif. Agric. Exp. Stn. Bull. 794. Berkeley, CA: University of California, Division of Agricultural Sciences.