Sergey N. Volkov (8443515) ; Dmitri O. Charkin (1733977) ; Vera A. Firsova (14289501)... https://figshare.com/articles/journal_contribution/Ag_sub_4_sub_B_sub_7_sub_O_sub_12_sub_X_X_Cl_Br_I_Heptaborate_Family_Comprehensive_Crystal_Chemistry_Thermal_Stability_Trends_Topology_and_Vibrational_Anharmonicity/21763785.
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2022