Otão II de Brandemburgo (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Otão II de Brandemburgo" in Portuguese language version.

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2books.google.com

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books.google.com

Clare, Israel Smith (1893). Nineteenth century (em inglês). V. Chicago: Unrivaled Publishing Company. p. 1870
Rosse, J. Willoughby (1858). An index of dates, a complete index to the enlarged ed. of [J.] Blair's Chronological tables (em inglês). 1. Londres: Henry G. Bohn. p. 108

google.com.br

The History of Prussia: From the Earliest Times to the Present Day : Tracing the Origin and Development of Her Military Organization. A.D. 1390-1525 (em inglês). Londres: Longman, Greens and Co. 1876. p. 305