Sydorova, L., A. Chernyavska, T. Chmylenko, and F. Chmylenko. “Polyelectrolyte Effect on Spectrophotometric Determination and Interaction of Scandium (III) With Eriochromcyanine”. Eastern-European Journal of Enterprise Technologies, vol. 4, no. 6 (88), Aug. 2017, pp. 53-58, doi:10.15587/1729-4061.2017.108371.