J. Arct, D. Kulik, and K. Pytkowska. “Chromium Allergy. The New View”. Journal of Applied Cosmetology, vol. 34, no. 3/4, Dec. 2016, p. 99/105, https://scientificeditorial.com/index.php/JAC/article/view/Chromium-allergy-The-new-view.