{"id":"001292974","type":"book","title":"Denier of emperor Otto II (967-983) and Notger 971-1008) for Tongeren?","publisher-place":"Bruxelles","pages":"224-226","container-title":"Revue Belge de Numismatique et de Sigillographie, 155 (2009","author":[{"family":"Trostyanskiy","given":"Oleg"}],"issued":{"raw":"2009"}}