* [http://www.newadvent.org/cathen/04308b.htm Catholic Encyclopedia: Second Council of Constantinople (553) Fifth Ecumenical Council] (newadvent.org)
* [http://www.newadvent.org/cathen/04308b.htm Catholic Encyclopedia: Second Council of Constantinople (553) Fifth Ecumenical Council] (newadvent.org)
* [http://www.zoominfo.com/p/Georg-Schieferdecker/192170660 Georg Albert Schieferdecker] 19th century (condemnation) Lutheran (zoominfo.com)
* [http://www.zoominfo.com/p/Georg-Schieferdecker/192170660 Georg Albert Schieferdecker] 19th century (condemnation) Lutheran (zoominfo.com)
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* [http://www.gutenberg.org/files/40929/40929-h/40929-h.htm The Project Gutenberg eBook of The Transformation of Early Christianity From an Eschatological to a Socialized Movement. Lyford Patterson Edwards, D.D., The University of Chicago. 1919] (gutenberg.org) - Apollinarianism
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* [https://www.gutenberg.org/files/40929/40929-h/40929-h.htm The Project Gutenberg eBook of The Transformation of Early Christianity From an Eschatological to a Socialized Movement. Lyford Patterson Edwards, D.D., The University of Chicago. 1919] (gutenberg.org) - Apollinarianism
* [http://www.the-highway.com/chiliasm_Masselink.html "The History of Chiliasm", William Masselink] (the-highway.com)
* [http://www.the-highway.com/chiliasm_Masselink.html "The History of Chiliasm", William Masselink] (the-highway.com)
* [http://mikeblume.com/chiliasm.html There Is No Future Physical Millenium, Mike Blume] (mikeblume.com)
* [http://mikeblume.com/chiliasm.html There Is No Future Physical Millenium, Mike Blume] (mikeblume.com)