Mullins, Joe (2012), Wilkinson, Caroline; Rynn, Christopher (eds.), "Age progression and regression", Craniofacial Identification, Cambridge: Cambridge University Press, pp. 68–75, ISBN978-0-521-76862-7, retrieved 2023-02-22
Mullins, Joe (2012), Wilkinson, Caroline; Rynn, Christopher (eds.), "Age progression and regression", Craniofacial Identification, Cambridge: Cambridge University Press, pp. 68–75, ISBN978-0-521-76862-7, retrieved 2023-02-22