Hackens, Antidorum W. Peremans, pp. 75-6, Noe, Sicyon, p. 36, Troxell, ANSMN 17 (1971), pp. 53-61, 86-8, illus., Vaux, NC 1854, pp. 31-7 (quoting a letter from C. T. Newton)
DAK 1895, p. 21, OAK 1895 (publ. 1897), p. 53, Pridik, IAK 3 (1902), pp. 58-92, illus. (lists 979 coins); IAK 7 (1903), p. 100, Seyrig, RN 1969, pp. 36-45