References
- 1969 . Proceedings of the Institute of Electrical and Electronic Engineers , August : 1465
- 1940 . Paulys Realencyclopadie der Classischen Altertums Wissemhaft 1039 – 1138 . Stuttgart Supple‐mentband VII
- Clarke , M. L. 1953 . Rhetoric at Rome: A Historical Survey , vi London : Cohen and West .
- Kennedy , George . 1963 . The Art of Persuasion in Greece , v Princeton , N.J. : Princeton Univ. Press .