LEVEI, Erika Andrea, et al. “CHEMICAL COMPOSITION OF SOME ROMANIAN BOTTLED NATURAL MINERAL WATERS”. Studia Universitatis Babeș-Bolyai Chemia, vol. 61, no. 3, Sept. 2016, pp. 391-00, https://studia.reviste.ubbcluj.ro/index.php/chemia/article/view/8361.