* Suermann, H., "Timothy and his dialogs with Muslims," in "The Harp VIII,IX (1995-1996)," 263-275* Suermann, H., "Timothy and his Concern for the School of Bašōš," in: "The Harp X, (1997)," 2, 51-58* Suermann, H., "Der nestorianische Patriarch Timotheos I. und seine theologischen Briefe im Kontext des Islam," in "Zu Geschichte, Theologie, Liturgie und Gegenwartslage der syrischen Kirchen" ed.
* Suermann, H., "Timothy and his dialogs with Muslims," in "The Harp VIII,IX (1995-1996)," 263-275* Suermann, H., "Timothy and his Concern for the School of Bašōš," in: "The Harp X, (1997)," 2, 51-58* Suermann, H., "Der nestorianische Patriarch Timotheos I. und seine theologischen Briefe im Kontext des Islam," in "Zu Geschichte, Theologie, Liturgie und Gegenwartslage der syrischen Kirchen" ed.