{"id":"000725414","type":"article","title":"The lightweight volcanic scoria in the concrete vaults of imperial Rome. Some evidence for the trade and economy of building materials","publisher":"Oxbow Books","publisher-place":"Oxford","pages":"212-216","container-title":"Proceedings of the XVIth International Congress of Classical Archaeology : Boston, August 23-26, 2003 : Common ground : archaeology, art, science, and humanities","author":[{"family":"Lancaster","given":"Lynne C."}],"issued":{"raw":"2006"}}