Fano, V., et al. “Release Phenomena and Toxicity in Polymer-Based Dental Restorative Materials”. Acta Biomedica Atenei Parmensis, vol. 78, no. 3, Dec. 2007, pp. 190-7, https://www.mattioli1885journals.com/index.php/actabiomedica/article/view/1901.