Fortaleza de Shumen (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Fortaleza de Shumen" in Spanish language version.

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1archaeologyinbulgaria.com

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archaeologyinbulgaria.com

«Bulgaria’s Shumen Completes Restoration of Ancient and Medieval Shumen Fortress with Norway Funding». Archaeologyinbulgaria.com. 12 de enero de 2016. Archivado desde el original el 29 de mayo de 2016. Consultado el 27 de abril de 2016.

archive.org

Fine, 1987, p. 407. Fine, J. (1987). The Late Medieval Balkans, A Critical Survey from the Late Twelfth Century to the Ottoman Conquest. University of Michigan Press. ISBN 0-472-10079-3.

books.google.com

Baker y Deliso, 2013, p. 773. Baker, Mark; Deliso, Chris (2013). Lonely Planet Romania & Bulgaria. Lonely Planet. ISBN 978-1-74321-637-8.
Cheynet y Sode, 2006, p. 94. Cheynet, Jean-Claude; Sode, Claudia (2006). Studies in Byzantine Sigillography. Walter de Gruyter. ISBN 978-3-11-093821-0.
Cheynet y Sode, 2006, p. 95. Cheynet, Jean-Claude; Sode, Claudia (2006). Studies in Byzantine Sigillography. Walter de Gruyter. ISBN 978-3-11-093821-0.
Cheynet y Sode, 2006, pp. 89–94. Cheynet, Jean-Claude; Sode, Claudia (2006). Studies in Byzantine Sigillography. Walter de Gruyter. ISBN 978-3-11-093821-0.
Petkov, 2008, p. 427. Petkov, Kiril (2008). The Voices of Medieval Bulgaria, Seventh-Fifteenth Century: Records of a Bygone Culture. BRILL. ISBN 978-90-474-3375-0.

eeagrants.org

«Restoring Shumen Fortress - EEA Grants». EEA Grants - Norway Grants, Financial Mechanism Office. 1 de agosto de 2010. Archivado desde el original el 28 de septiembre de 2016. Consultado el 27 de abril de 2016.

web.archive.org

«Restoring Shumen Fortress - EEA Grants». EEA Grants - Norway Grants, Financial Mechanism Office. 1 de agosto de 2010. Archivado desde el original el 28 de septiembre de 2016. Consultado el 27 de abril de 2016.
«Bulgaria’s Shumen Completes Restoration of Ancient and Medieval Shumen Fortress with Norway Funding». Archaeologyinbulgaria.com. 12 de enero de 2016. Archivado desde el original el 29 de mayo de 2016. Consultado el 27 de abril de 2016.