“ISOVALENT SUBSTITUTION OF LANTHANUM ATOMS IN BaLa2Sc2O7 SCANDATE: DOI: Https: doi.Org 10.17721 1728-2209.2023.1(58).4”. 2023. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry 58 (1): 22-25. https://chemistry.bulletin.knu.ua/article/view/2919.