Zaremba О., Filipenko, N., Horin А., & Gladyshevski, R. (2019). Phases with perovskite structure in the A-R-Mn-O systems, where A - alkali-earth metal, R - rare-earth metal . Reports of the National Academy of Sciences of Ukraine, (8), 69–77. https://doi.org/10.15407/dopovidi2019.08.069