CORNEA, Daniela, et al. “THE STUDY OF PIT AND FISSURE SEALANTS CONCERNING WATER SORPTION AND SOLUBILITY”. Studia Universitatis Babeș-Bolyai Chemia, vol. 61, no. 2, June 2016, pp. 239-48, https://studia.reviste.ubbcluj.ro/index.php/chemia/article/view/8322.