Yan Wu, Yan Sun, Hong-Duo Chen, and Xing-Hua Gao. “Nanotechnology for Topical Application in Cosmetic Dermatology”. Journal of Applied Cosmetology, vol. 29, no. 1, June 2011, p. 3/15, https://scientificeditorial.com/index.php/JAC/article/view/Nanotechnology-for-Topical-Application-in-Cosmetic-Dermatology.