Here are three of my latest books:
Callu, J. P., and P. Bastien. Inventaire des Tresors de Bronze Constantiniens (313-348). Le Tresors Monetaire des Fresnoy-les-Roye II (261-309) . Wetteren, 1981.
Duval, Noël and Vladislav Popovic, eds. Sirmium VIII. Études de Numismatique Danubienne: Trésors, Lingots, Imitations. Monnaies de Fouilles IV au XII Siècle. Rome: Ecole francaise de Rome, 1978.
Duncan, C. L. Coin Circulation in the Danubian and Balkan Provinces of the Roman Empire A.D. 294-578. London: Royal Numismatic Society, 1993.