CADAR, Oana, et al. “SILICON RELEASE FROM HYDROXYAPATITES IN WATER AND SIMULATED BODY FLUID”. Studia Universitatis Babeș-Bolyai Chemia, vol. 62, no. 4, Tome I, Dec. 2017, pp. 67-80, doi:10.24193/subbchem.2017.4.06.