“ADSORPTION OF HEAVY METALS BY CHITOSAN CROSSLINKED WITH GLUTARALDEHYDE: UDC 544.723, 547.458”. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, vol. 50, no. 1, Nov. 2014, pp. 35-38, https://chemistry.bulletin.knu.ua/article/view/8498.