Kaimieva, O. S., A. V. Yushkov, E. S. Buyanova, S. A. Petrova, and I. V. Nikolaenko. “Synthesis, Structure, and Investigation of Bismuth Niobate Doped by Alkaline-Earth Elements”. KnE Materials Science, Vol. 4, no. 2, Oct. 2018, pp. 83-91, doi:10.18502/kms.v4i2.3041.