{"id":"001354691","type":"article","title":"Ancient economy south of the Lower Danube Limes (the territory of present-day North Bulgaria) based on finds of tools from the period of the 1st - the beginning of the 7th c. BC","publisher":"National Archaeological Institute with Museum, BAS","publisher-place":"Sofia","pages":"63-81","container-title":"The Lower Danube Roman Limes (1st-6th C. AD","author":[{"family":"Cholakov","given":"Ivo D"}],"issued":{"raw":"2012"}}