Asabina, E. A., Petkov, V. I., Kovalsky, A. M., & Kotelnikov, A. R. (2010). Synthesis and Hydrothermal Study of (Na,K)M2(PO4)3 (M = Ti, Zr, Hf) Solid Solutions. Eurasian Chemico-Technological Journal, 12(3-4), 195–199. https://doi.org/10.18321/ectj44