Костенко, Є.Є. and Бутенко, О.М. 2014. Solid-phase spectrophotometry determination of Нg (II) using hromazurol S. Eastern-European Journal of Enterprise Technologies. 3, 5(69) (Jun. 2014), 20–24. DOI:https://doi.org/10.15587/1729-4061.2014.24893.