T. Sulimirski, article “Cimmerians” Encyclopaedia Britannica, 1967 ed.
418
K. Jettmar, L’Art des Steppes. P. 80–141.
419
(a) E. L. Kohler, “Phrygian Animal Style and Nomadic Art” in M.J. Mellink, Dark Ages and Nomads, c. 1000 BC, Istambul, 1964. P. 58–62; (b) R.S. Young, AJA 61. 1957.