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Ibragimova, E.M.; Mukhamedshina, N.M.; Islamov, A.Kh. 2009. Correlations between admixtures and color centers created upon irradiation of natural beryl crystals. Inorganic Materials. 45 (2): 162. doi:10.1134/S0020168509020101. ISSN0020-1685. S2CID96344887
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Color in the beryl group. Mineral Spectroscopy Server. minerals.caltech.edu. California Institute of Technology. Inačica izvorne stranice arhivirana 22. kolovoza 2011. Pristupljeno 6. lipnja 2009.
Ibragimova, E.M.; Mukhamedshina, N.M.; Islamov, A.Kh. 2009. Correlations between admixtures and color centers created upon irradiation of natural beryl crystals. Inorganic Materials. 45 (2): 162. doi:10.1134/S0020168509020101. ISSN0020-1685. S2CID96344887