[201] Bogdanov (1892).
[202] Sergi (1908) 309–316.
[203] Peake (1919) 197.
[204] Bogdanov (1892) 4.
[205] Minns (1913) 142, 143; Zaborowski (1895) 126; Rostovtzeff (1920) 60, 110.
[206] Osborn (1918) 337.
[207] Peake (1916) 1. 162, 163; (1922) 1. 51.
[208] Huntington (1907).
[209] Huntington (1911).
[210] Peisker (1911) 325–328.