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John Oecolampadius
http://14.1911encyclopedia.org/O/OE/OECOLAMPADIUS_JOHN.htm
Biographical article of this theological leader.
Oecolampadius
http://www.newadvent.org/cathen/11213a.htm
A Catholic Encyclopedia biography of this early reformer of Basel.
The Reformation in Basel
http://www.ccel.org/s/schaff/hcc8/htm/iv.iv.iii.htm
Chapter of Schaff's book on Oecolampadius and the reformation in Basel.