参考文献
Leidie, E.
Ann. Chim. Phys., 1889 , vol. 17, p. 268 - 268
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Gmelin Handbook: Rh: MVol., 21, page 54 - 56
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Claus, C.
Jber., Beitraege zur Chemie der Platinmetalle, Festschrift Universitaet Kasan, Dorpat 1854, S. 64 1855 , p. 431