{"id":"001193615","type":"book","title":"The black grouse. Tetrao tetrix (L., 1758) (Tetraonidae, Aves), a disappeared species in Bulgaria (Paleolithic and Neolithic records)","pages":"643-646","container-title":"Anthropozoologica, 25/26 (1997","author":[{"family":"Boev","given":"Zlatozar"}],"issued":{"raw":"1997"}}