Glass along the Silk Road from 200 BC to AD 1000 : international conference within the scope of the "Sino-German Project on Cultural Heritage Preservation" of the RGZM and the Shaanxi Provincial Institute of Archaeology, December 11th-12th, 2008 / Bettina Zorn, Alexandra Hilgner (eds.) / Mainz : Verlag des Römisch-Germanischen Zentralmuseums , 2010