{"id":"001539568","type":"book","title":"Ancient weight alterations of silver and gold coins","publisher":"Bobokov Bros. Foundation","publisher-place":"Sofia","pages":"369-377","container-title":"Ex Nummis Lux : studies in ancient numismatics in honour of Dimitar Draganov","author":[{"family":"MacDonald","given":"David J."}],"issued":{"raw":"2017"}}