“STRUCTURAL AND SPECTRAL STUDIES OF THE MIXED-LIGAND CATION COMPLEX OF LANTHANUM [Lа(L)2bipy2]BPh4 WITH CARBACYLAMIDOPHOSPHATE (CAPh) TYPE LIGAND AND 2,2’-BIPYRIDINE: DOI: Https: doi.Org 10.17721 1728-2209.2020.1(57).4”. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, vol. 57, no. 1, Dec. 2020, pp. 15-19, https://chemistry.bulletin.knu.ua/article/view/8623.