Ismagilov, E. R., A. F. Karas, and G. A. Karas. 2018. “Experimental Study of Skull Bones Reconstruction With the Use of Autografts and Hydroxyapatitical Gel”. Journal of Education, Health and Sport 8 (7):644-56. https://apcz.umk.pl/JEHS/article/view/6399.