Adolf von Harnack

A biography of Adolf von Harnack from the Dictionary of Modern Western Theology.
http://www.bu.edu/wwildman/WeirdWildWeb/courses/mwt/dictionary/mwt_themes_680_harnack.htm

Marcion

An excerpt from Adolf von Harnack's, "History of Dogma."
http://www.webcom.com/~gnosis/library/marcion/Harnack.html

Harnack, Adolf: Outlines of the History of Dogma

Evangelical criticism of Harnack's views regarding the Gospel of John and the Trinity.
http://www.bible.ca/trinity/trinity-Harnack.htm

Adolf Harnack - Wikipedia

Article on the theologian, historian and essayist who was one of the major contributors to the theories of the social gospel movement.
http://en.wikipedia.org/wiki/Adolf_Harnack