BORATE GLASSES, CRYSTALS & MELTS (HS Tariff - 4901 9900 00)
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the Third International Conference on Borate Glasses, Crystals and Melts: Structure and applications was held during the period 4-9 July 1999 at the Bistritsa Residence, Sofia, Bulgaria. This followed previous conference's held at the New York State College of ceramics (Alfred USA) in 1977 and the Cosener's House (Abingdon UK) in 1997
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