Citations:sigma


 * 1989, Gavin Betts and Alan Henry, Ancient Greek, :, ISBN 034042298X, § 1.1/1: “The Greek alphabet and its pronunciation”, page 2:
 * The form of sigma given above (which dates from the Roman period) is, for reasons of convenience, the one increasingly used in modern editions. The traditional forms of lower case sigma, which date from the Middle Ages, are σ when initial or medial, ς when final, e.g. σύστασις (ϲύϲταϲιϲ) composition. The traditional upper case version is Σ. All three forms occur in Σωσιγένης (Ϲωϲιγένηϲ) Sosigenes.