{"id":"000435209","type":"article","title":"The contact zones method for northeastern Thrace, end of 2nd - beginning of the 1st millennium B.C. (Bulg.m.engl.Res.) -","pages":"56-60","container-title":"Acta, 3.1988","author":[{"family":"Porojanov","given":"K."}],"issued":{"raw":"1988"}}