Index patristicus sive Clavis patrum apostolicorum operum - Goodspeed, Edgar J. (Edgar Johnson), 1871-1962; Lightfoot, Joseph Barber, 1828-1889; Von Zahn, Theodor, 1838-1933; von Harnack, Adolf (Karl Gustav Adolf), 1855-1930 (Leipzig : Hinrichs, 1907)