840s (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "840s" in English language version.

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archive.org

Zimmermann, Wilhelm (1878). A Popular History of Germany: From the Earliest Period to the Present Day. H. J. Johnson. p. 533.

books.google.com

Treadgold 1988, pp. 324–325. Treadgold, Warren (1988). The Byzantine Revival, 780–842. Stanford, California: Stanford University Press. ISBN 978-0-8047-1462-4.
Vasiliev 1935, pp. 399–404. Vasiliev, Alexander A. (1935). Byzance et les Arabes, Tome I: La dynastie d'Amorium (820–867). Corpus Bruxellense Historiae Byzantinae (in French). French ed.: Henri Grégoire, Marius Canard. Brussels: Éditions de l'Institut de philologie et d'histoire orientales. OCLC 181731396.
Jones 2001, p. 212. Jones, Gwyn (2001). A History of the Vikings. Oxford University. ISBN 978-0-19-280134-0.
Sawyer 2001, p. 40. Sawyer, PH (2001). Illustrated History of the Vikings. Oxford University. ISBN 978-0-19-285434-6.
Fine, John V. A. Jr. (1991) [1983]. The Early Medieval Balkans: A Critical Survey from the Sixth to the Late Twelfth Century. Ann Arbor: University of Michigan Press. p. 110. ISBN 0-472-08149-7.
Goldberg 2006, p. 140. Goldberg, Eric J. (2006). Struggle for Empire: Kingship and Conflict under Louis the German, 817-876. Ithaca, NY: Cornell University Press. ISBN 9780801438905.
Kennedy 2006, p. 232. Kennedy, Hugh (2006). When Baghdad Ruled the Muslim World: The Rise and Fall of Islam's Greatest Dynasty. Cambridge, MA: Da Capo Press. ISBN 978-0-306814808.
Talbot, Alice-Mary Maffry (1996). "Life of St. Theodora of Thessalonike". Holy Women of Byzantium: Ten Saints' Lives in English Translation. Dumbarton Oaks. p. 179. ISBN 978-0-88402-248-0. Retrieved 3 March 2024.

brillonline.com

referenceworks.brillonline.com

Huart 1986, p. 647. Huart, Cl. (1986). "Lamas-Ṣū". In Bosworth, C. E.; van Donzel, E.; Lewis, B. & Pellat, Ch. (eds.). The Encyclopaedia of Islam, Second Edition. Volume V: Khe–Mahi. Leiden: E. J. Brill. p. 647. ISBN 978-90-04-07819-2.

britannica.com

History of Central Asia.
"Al-Muʿtaṣim | ʿAbbāsid caliph". Encyclopedia Britannica. Retrieved 2021-05-18.

doi.org

Eustache, D. (1971). "Idrīsids". In Lewis, B.; Ménage, V. L.; Pellat, Ch. & Schacht, J. (eds.). The Encyclopaedia of Islam, Second Edition. Volume III: H–Iram. Leiden: E. J. Brill. pp. 1035–1037. doi:10.1163/1573-3912_islam_SIM_3495. OCLC 495469525.

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Vasiliev 1935, pp. 399–404. Vasiliev, Alexander A. (1935). Byzance et les Arabes, Tome I: La dynastie d'Amorium (820–867). Corpus Bruxellense Historiae Byzantinae (in French). French ed.: Henri Grégoire, Marius Canard. Brussels: Éditions de l'Institut de philologie et d'histoire orientales. OCLC 181731396.
Eustache, D. (1971). "Idrīsids". In Lewis, B.; Ménage, V. L.; Pellat, Ch. & Schacht, J. (eds.). The Encyclopaedia of Islam, Second Edition. Volume III: H–Iram. Leiden: E. J. Brill. pp. 1035–1037. doi:10.1163/1573-3912_islam_SIM_3495. OCLC 495469525.