“SYNTHESIS AND ELECTRICAL PROPERTIES OF (Li, Ca)-SUBSTITUTED LANTHANUM COBALTATES: DOI: https://doi.org/10.17721/1728-2209.2018.1(55).5” (2019) Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, 55(1), pp. 25–27. Available at: https://chemistry.bulletin.knu.ua/article/view/8538 (Accessed: 14 February 2026).