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2. Regulation (EC) No 1925/2006 of the European Parliament and of the Council of 20 December 2006 on the addition of vitamins and minerals and of certain other substances to foods;European Parliament and of the Council;Official Journal of the European Union OJ,2006
3. SCF (Scientific Committee on Food) , 2003. Opinion of the Scientific Committee on Food on the Tolerable Upper Intake Level of Calcium. Expressed on 4 April 2003. Available at: .
4. Calcium requirements of infants, children and adolescents;AAP (American Academy of Pediatrics), Committee on Nutrition;Pediatrics,1999