“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”. 2020. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry 57 (1): 15-19. https://chemistry.bulletin.knu.ua/article/view/8623.