Sergey Mikheykin, Mos SIA Radon (Russia)
; E.Y. Anciferova, Mos SIA Radon (Russia)
; A.B. Zezin, Moscow State University (Russia)
; V.B. Rogacheva, Moscow State University (Russia)
; T.N. Bolusheva, Moscow State University (Russia)
; V.P. Simonov, All-Russian Research Institute of Inorganic Materials (Russia)
; A.A. Bochvar, All-Russian Research Institute of Inorganic Materials (Russia)
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