{"id":"001497185","type":"book","title":"Novootkriti težesti ot k'snoantičnata i srednovekocna krepost \"Bal'k dere\", obŝina Ivajlovgrad","publisher-place":"Sofija","pages":"207-209","container-title":"Numizmatika, sfragistika i epigrafika, 8 (2012","author":[{"family":"Kanev","given":"Ivaylo"}],"issued":{"raw":"2012"}}