{"id":"000478513","type":"article","title":"Aibunar, a Balkan copper mine of the fourth millennium BC. Investigations of the years 1971, 1972 and 1974","pages":"203-217","container-title":"Proceedings of the Prehistoric Society, 44.1978","author":[{"family":"Černych","given":"Evgenij Nikolaevič"}],"issued":{"raw":"1978"}}