*In 1904 the ''Sixth Book of the Select Letters of Severus'', in the Syriac version of [[Athanasius of Nisibis]], were edited by [[G. E. W. Brooks]] (London). For a full statement of his opinions see the major work of Dorner, and the article "Monophysiten" in Herzog's Encyclopedia.*This article uses text from ''[http://www.ccel.org/w/wace/biodict/htm/TOC.htm A Dictionary of Christian Biography and Literature to the End of the Sixth Century A.D., with an Account of the Principal Sects and Heresies]'' by [[Henry Wace]].