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2. Barbalace KL 2009 Periodic table of elements-aluminum-Al, Environmental Chemistry. Com, 1995-2009) http://environmentalchemistry.com/yogi/periodic.Al-html
3. Codex Alimentarius 2008 Report of the USA Delegate, Codex Committee on Food Additives
4. Codex Alimentarius Commission 2004 Joint FAO/WHO Food Standards Programme, CX/FL 0415 - ADD.2