| Alföldi, "The Reckoning by the Regnal Years and Victories of Valerian and Gallienus" (Jour. Rom. Studies, XXX, 1940, p. 4). Alföldi, "Siscia", Num. Köz., 1927/8, pp. 14-58. RIC, V (1), p. 174, 501. Num ... Agora 2 92 ... Agora 2, s. 102, p. 92 |
| Robert Göbl, Num. Zeit., 1951, p. 10. RIC, V (1), p. 57, 252. Bellinger, "The Numismatic Evidence from Dura", Berytus, VIII, 1943, pp. 65-67. Mattingly, Num. Chron., Ser. 5, XVI, 1936, p. 108. Waage, Antioch, ... Agora 2 91 ... Agora 2, s. 101, p. 91 |
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