Proydakova V.Y., Alexandrov A.A., Voronov V.V., Fedorov P.P. Synthesis of calcium and strontium fluorides using Li₂SO₄–Na₂SO₄ eutectic melts. Russian Journal of Inorganic Chemistry. 2020. V. 65. I 6. P. 834-838. 

DOI:10.1134/S0036023620060169