| Vol 91, No 10 (2018) |
Letters to the Editor |
Comment on the article “BiF3:Ho3+ System for Upconversion of 2-μm Laser Radiation into Visible Emission” of authors A. P. Savikin, A. S. Egorov, A. V. Budruev, and I. A. Grishin [Russian Journal of Applied Chemistry 89 (2), 337–340 (2016)] |
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