{"id":"000936543","type":"book","title":"Kamenno-mednata epocha v Bălgarija (peto chiljadoletie predi novata era)","publisher":"Nauka i Izkustvo","publisher-place":"Sofija","author":[{"family":"Todorova","given":"Chenrieta 1933-2015."}],"issued":{"raw":"1986"}}