Нужна статья
Beck, H.P., New mixed halide compounds MFX of divalent rare earths (M = Sm, Eu, Tm, and Yb; X = Cl, Br, and I). Journal of Solid State Chemistry, 1978. 23(1-2): p. 213-217
- DOI:
http://dx.doi.org/10.1016/0022-4596(78)90067-1
http://www.sciencedirect.com/science/ar ... 9678900671
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