1. Nilsson M. P. , Griechische Feste, 1906, p. 281.
2. Murray Gilbert , The Rise of the Greek Epic2, 1911, p. 327.
3. Finley J. H. , Thucydides, 1942, p. 310.
4. Willetts R. F. , Aristocratic Society in Ancient Crete, 1955, in particular pp. 52 et seq.
5. van Manen J. J. , Penia en Ploutos in de periode na Alexander, Diss. Utrecht 1931