{"id":"001271675","type":"book","title":"Preliminary Report on the Discovery of \"Talud-tablero\" Architecture, Green Obsidian Artifacts and a Cylindrical Tripod Vessel at the Maya Site of Nakum, Petén, Guatemala","pages":"397-414","container-title":"Recherches Archéologiques, 1999-2003 (2006","author":[{"family":"Koszkul","given":"Wiesław"}],"issued":{"raw":"2006"}}