«The origin of the Cimmerians is obscure. Linguistically they are usually regarded as Thracian or as Iranian, or at least to have had an Iranian ruling class.» «Cimmerian» i: Encyclopædia Britannica, 2006
openlibrary.org
Cozzoli, Umberto (1968): I Cimmeri. Roma Italia: Arti Grafiche Citta di Castello (Roma).