"[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]1Westermark 1979, p. 292, pl. 36, n° 17, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2Garraffo 1984, p. 133, n° 3, pl. XVI, n° 11, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]3SNG ANS 3 Sicily, n° 926, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]4Jenkins 1970, Group II c, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]5HGC 2, n° 93
"[[Coin series reference overstruck" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]6Ravel 1936, Group II
^Westermark, Ulla (1979), "Overstrikes of Taras on didrachms of Acragas", in Otto Mørkholmand Nancy M. Waggoner (eds.), Greek numismatics and archaeology. Essays in honor of Margaret Thompson, Wetteren, p. 287-293, pl. 36.
^Garraffo, Salvatore (1984), Le riconiazioni in Magna Grecia e in Sicilia. Emissioni argentee dal VI al IV secolo a.C., Catania.
^Jenkins, Gilbert Kenneth (1970), The Coinage of Gela, AMUGS II, 2 vol., Berlin
^Hoover, Oliver D. (2012), The Handbook of Greek Coinage Series. 2. Handbook of the Coins of Sicily (Including Lipara). Civic, Royal, Siculo-Punic, and Romano-Sicilian Issues. Sixth to First Centuries BC, Lancaster-London, 489 p.
^Ravel, Oscar E (1936), Les "Poulains" de Corinthe : monographie des statères corinthiens. Tome I: de 650 à 415 J.-C., Basel.