De Donno, Antonio, et al. “Facial Approximation for Identification Purposes: Soft Tissue Thickness in a Caucasian Population. Sex- and Age-Related Variations”. The Journal of Forensic Odonto-Stomatology - JFOS, vol. 40, no. 1, May 2022, p. 34:41, https://ojs.iofos.eu/index.php/Journal/article/view/1387.