Procopius; Dewing, Henry Bronson, trans. (1916). Procopius. 2: History of the [Vandalic] Wars, Books III and IV. London, England: William Heinemann. hlm. 329. ISBN978-0-674-99054-8.
Cassiodorus; Hodgkin, Thomas, trans. (1886). The Letters of Cassiodorus. London, England: Henry Frowde. hlm. 518–520. See: "25. Senator, Praetorian Praefect, to his deputy Ambrosius, an Illustris."
Gibbons, Ann (15 November 2018). "Why 536 was 'the worst year to be alive'". Science. doi:10.1126/science.aaw0632.
Stothers, R.B.; Rampino, M.R. (1983). "Volcanic eruptions in the Mediterranean before AD 630 from written and archaeological sources". Journal of Geophysical Research. 88 (B8): 6357–6471. Bibcode:1983JGR....88.6357S. doi:10.1029/JB088iB08p06357.
Abbott, D. H.; Biscaye, P.; Cole-Dai, J.; Breger, D. (December 2008). "Magnetite and Silicate Spherules from the GISP2 Core at the 536 A.D. Horizon". AGU Fall Meeting Abstracts. American Geophysical Union, Fall Meeting 2008. 41. hlm. 41B–1454. Bibcode:2008AGUFMPP41B1454A. Abstract #PP41B-1454.
Stothers, R.B.; Rampino, M.R. (1983). "Volcanic eruptions in the Mediterranean before AD 630 from written and archaeological sources". Journal of Geophysical Research. 88 (B8): 6357–6471. Bibcode:1983JGR....88.6357S. doi:10.1029/JB088iB08p06357.
Dull, R.; J.R. Southon; S. Kutterolf; A. Freundt; D. Wahl; P. Sheets (13–17 December 2010). "Did the TBJ Ilopango eruption cause the AD 536 event?". AGU Fall Meeting Abstracts. 13: V13C–2370. Bibcode:2010AGUFM.V13C2370D.
Kutterolf, S.; Freundt, A.; Peréz, W. (February 2008). "Pacific offshore record of plinian arc volcanism in Central America: 2. Tephra volumes and erupted masses". Geochemistry, Geophysics, Geosystems. 9 (2). Bibcode:2008GGG.....902S02K. doi:10.1029/2007GC001791.
Michel le Syrien; Chabot, J.-B., trans. (1901). Chronique de Michel le Syrien, Patriarche Jacobite d'Antoche [Chronicle of Michael the Syrian, Jacobite Patriarch of Syria] (dalam bahasa Prancis). 2nd vol. Paris, France: Leroux. hlm. 220–221. From pp. 220–221: "Or, un peu auparavant, en l'an 848, il y eut un signe dans le soleil. … , et le vin avait le goût de celui qui provient de raisins acides." (However, a little earlier, in the year 848 [according to the Greek calendar; 536/537 AD according to the Christian calendar], there was a sign in the sun. One had never seen it [before] and nowhere is it written that such [an event] had happened [previously] in the world. If it were not [true] that we found it recorded in most proven and credible writings, and confirmed by men worthy of belief, we would not have written it [here]; for it's difficult to conceive. So it is said that the sun was darkened, and that its eclipse lasted a year and a half, that is, eighteen months. Every day it shone for about four hours and yet this light was only a feeble shadow. Everyone declared that it would not return to the state of its original light. Fruits didn't ripen, and wine had the taste of what comes from sour grapes.)
jstor.org
Arjava, Antti (2005). "The mystery cloud of 536 CE in the Mediterranean sources". Dumbarton Oaks Papers. 59: 73–94. doi:10.2307/4128751. JSTOR4128751.