M. H. J. Sikorska-Jaroszyńska, M. Mielnik-Błaszczak, D. Krawczyk, R. Wróbel, and . J. Błaszczak, “Tea – natural source of fluoride compounds”, Curr. Issues Pharm. Med. Sci., vol. 25, no. 3, pp. 247–249, Jul. 2012, doi: 10.12923/j.2084-980X/25.3/a.05.