"Continuation of the Chronicle of George Hamartolos" in GIBI, vol. VI, Bulgarian Academy of Sciences, Sofia, p. 145 12 Ekim 2016 tarihinde Wayback Machine sitesinde arşivlendi.
"Chronographia by Theophanes Continuatus" in GIBI, vol. V, Bulgarian Academy of Sciences, Sofia, p. 130 13 Ocak 2018 tarihinde Wayback Machine sitesinde arşivlendi.
"Chronographia by Theophanes Continuatus" in GIBI, vol. V, Bulgarian Academy of Sciences, Sofia, p. 131 12 Ekim 2016 tarihinde Wayback Machine sitesinde arşivlendi.
"Continuation of the Chronicle of George Hamartolos" in GIBI, vol. VI, Bulgarian Academy of Sciences, Sofia, p. 145 12 Ekim 2016 tarihinde Wayback Machine sitesinde arşivlendi.
"Chronographia by Theophanes Continuatus" in GIBI, vol. V, Bulgarian Academy of Sciences, Sofia, p. 130 13 Ocak 2018 tarihinde Wayback Machine sitesinde arşivlendi.
"Chronographia by Theophanes Continuatus" in GIBI, vol. V, Bulgarian Academy of Sciences, Sofia, p. 131 12 Ekim 2016 tarihinde Wayback Machine sitesinde arşivlendi.