The historians' history of the world in twenty-five volumes, volume 02
CHAPTER II. SCYTHIANS AND CIMMERIANS
[b] PAUL KAROLIDES, _op. cit._
[c] GEORGE GROTE, _History of Greece_.
[d] HERODOTUS, _The History of Herodotus_ (translated from the Greek by William Beloe).
[e] EDUARD MEYER, _op. cit._
[f] THUCYDIDES, _The History of the Peloponnesian War_ (translated from the Greek by Hobbes).
[g] STRABO, _Γεωγραφικά_.