Simmons, Kurt M. "Dr". dec25th.info. Retrieved March 19, 2020.
doi.org
"Significant Earthquake Information". National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Global Significant Earthquake Database. NOAA National Centers for Environmental Information. doi:10.7289/V5TD9V7K. Retrieved 13 August 2024.
Cameron, Alan (1982). "The Death of Vitalian (520 A.D.)". Zeitschrift für Papyrologie und Epigraphik. 48. Bonn: Dr. Rudolf Habelt GmbH: 93–94. JSTOR20183637. The month of Vitalian's death is taken from the chronicle of Marcellinus Comes, sub anno 520. Alan Cameron discussed the supporting evidence, concluding that Marcellinus is correct.
Blumenthal, Henry J. (1978). "529 and Its Sequel: What Happened to the Academy?". Byzantion. 48 (2): 369–385. JSTOR44171310.
"Significant Earthquake Information". National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Global Significant Earthquake Database. NOAA National Centers for Environmental Information. doi:10.7289/V5TD9V7K. Retrieved 13 August 2024.