S. Skalec, B. Winiarska, J. Arct, and K. Pytkowska. 2014. “Cosmetic Regulation of Sebaceous Gland Activity”. Journal of Applied Cosmetology 32 (1/2). Italia:85/98. https://scientificeditorial.com/index.php/JAC/article/view/Cosmetic-Regulation-of-Sebaceous-Gland-Activity.