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Allen 1908, p. 3. Allen, George H. (1908). "The Advancement of Officers in the Roman Army". Supplementary Papers of the American School of Classical Studies in Rome. 2: 1–25. ISSN1940-0969. JSTOR4238491.
Rankov 1990, p. 176-182. Rankov, N. B. (1990). "Frumentarii, the Castra Peregrina and the Provincial Officia". Zeitschrift für Papyrologie und Epigraphik. 80: 176–182. ISSN0084-5388. JSTOR20187218.
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Mann 1988, pp. 149–150. Mann, J. C. (1988). "The Organization of Frumentarii". Zeitschrift für Papyrologie und Epigraphik. 74: 149–150. ISSN0084-5388. JSTOR20186909.