“SYNTHESIS AND SPECTRAL PROPERTIES OF LANTANIDE COMPLEXES WITH A NEW TRIPODAL TRIS-CHELATING CAPH LIGAND: DOI: Https: doi.Org 10.17721 1728-2209.2018.1(55).8”. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, vol. 55, no. 1, Jan. 2019, pp. 35-39, https://chemistry.bulletin.knu.ua/article/view/8400.