Procopius; Dewing, Henry Bronson, trans. (1916). Procopius. Vol. 2: History of the [Vandalic] Wars, Books III and IV. London, England: William Heinemann. hlm. 329. ISBN978-0-674-99054-8. Pemeliharaan CS1: Banyak nama: authors list (link)
Cassiodorus; Hodgkin, Thomas, trans. (1886). The Letters of Cassiodorus. London, England: Henry Frowde. hlm. 518–520. Pemeliharaan CS1: Banyak nama: authors list (link) 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. Vol. 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.
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). Vol. 2nd vol. Paris, France: Leroux. hlm. 220–221. Pemeliharaan CS1: Banyak nama: authors list (link) 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.)