{"id":"000221758","type":"article","title":"El sistema defensivo del castro de La Ulaña (Humada, Burgos)","publisher":"CSIC, Instituto de Historia","publisher-place":"Madrid","pages":"3-22","container-title":"Archivo Español de Arqueología (Madrid), 77.2004","author":[{"family":"Cisneros Cunchillos","given":"Miguel."}],"issued":{"raw":"2004"}}