{"id":"001296827","type":"book","title":"Severnata kula na srednovekovnata krepost na ch\"lma Trapezica v\"v Veliko T\"rnovo","pages":"48-67","container-title":"Arheologija (Sofija), 50,3/4 (2009","author":[{"family":"Dermendžiev","given":"Evgeni"}],"issued":{"raw":"2009"}}