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Status Solidi A}} 203 2083 , year={2006} } @incollection{b4, , title={{}} , author={{ PSGahlot } and { VPSeth } and { AAgarwal } and { NKisore } and { SKGupta } and { MArora } and { DRRadiat }} , journal={{Eff. Defects Solids}} 159 216 , year={2004} } @incollection{b5, , title={{}} , author={{ FSmeacetto } and { MSalvo } and { MFerraris } and { JCho } and { ARBoccaccini }} , journal={{J. Eur.Ceram. Soc}} 28 61 , year={2008} } @book{b6, , author={{ SSKasymova } and { EMMilyukov } and { GTPetrovskii }} , title={{Strontsii v stekle (Strontiumin Glass)}} Leningrad , publisher={Stroiizdat} , year={1978} } @incollection{b7, , title={{}} , author={{ RLimbach } and { AWinterstein-Beckmann } and { JDellith } and { DMoncke } and { LWondraczek }} , journal={{J. Non-Cryst. 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