227 (Czech Wikipedia)

Analysis of information sources in references of the Wikipedia article "227" in Czech language version.

Last modified: 09:08:57, 10 September 2026 (UTC)

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11web.archive.org

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web.archive.org (Global: 1^st place; Czech: 1^st place)

BENARIO, Herbert W. Alexander Severus (A.D. 222-235) [online]. roman-emperors.org, rev. 2001-6-15 [cit. 2010-11-18]. Dostupné v archivu pořízeném dne 2008-05-15. (anglicky)