BULGARIU, Dumitru, et al. “REMOVAL OF Zn(II) IONS FROM AQUEOUS SOLUTION BY ADSORPTION ON MUSTARD HUSKS”. Studia Universitatis Babeș-Bolyai Chemia, vol. 60, no. 2, June 2015, pp. 147-60, https://studia.reviste.ubbcluj.ro/index.php/chemia/article/view/8437.