{"id":"000863939","type":"article","title":"The tombs of the Neolithic artist-shepherds of the Tagus Valley and megalithic monuments of the mouth of river Sever","publisher":"Hadrian Books","publisher-place":"Oxford","pages":"117-127","container-title":"Graphical markers and megalith builders in the international Tagus, Iberian Peninsula","author":[{"family":"Oliveira","given":"Jorge de."}],"issued":{"raw":"2008"}}