{"id":"000067997","type":"book","title":"Excavations at Cueva Negra del Estrecho del Río Quípar and Sima de las Palomas del Cabezo Gordo","publisher":"Oxbow Books","publisher-place":"Oxford","pages":"153-159","container-title":"A very remote period indeed","author":[{"family":"Walker","given":"Michael J."}],"issued":{"raw":"2001"}}