[1]
E. J. Szymelfejnik, L. Wadolowska, and R. Cichon, “Magnesium, Zinc and Copper Intake by Polish University Students”, Pak. J. Nutr., vol. 7, no. 3, pp. 436–443, Apr. 2008, doi: 10.3923/pjn.2008.436.443.