Grunnbøker:
Brown, P.: The Rise of Western Christendom: Triumph and Diversity 200-1000 AD, 2003. Blackwell. s. 1-548.
Bartlett, R.: The Making of Europe. Conquest, Colonization and Cultural Change 950-1350, 1994. Penguin Books. s. 1-384.
Artikler
Pluskowski A. & Patrick P.: "How do you pray to God?’ Fragmentation and Variety in Early Medieval Christianity" i Ed. Martin Carver: The Cross Goes North. Processes of Conversion in Northern Europe, AD 300-1300, 2003. York. s. 29-57.
Pearce, S. M.: "Processes of Conversion in north-west Roman Gaul" i Ed. Martin Carver: The Cross Goes North. Processes of Conversion in Northern Europe, AD 300-1300, 2003. York . s. 61-78.
Gräslund, A.: "The Role of Scandinavian Women in the Christianisation: The Neglected Evidence" i Ed. Martin Carver: The Cross Goes North. Processes of Conversion in Northern Europe, AD 300-1300, 2003. York. s. 483-496.
Valk, H.: "Christianisation in Estonia: A process of Dual-Faith and Syncretism" i Ed. Martin Carver: The Cross Goes North. Processes of Conversion in Northern Europe, AD 300-1300, 2003. York. s. 571-579.
Goetz, H.: "Constructing the Past. Religious Dimensions and historical Consciousness in Adam of Bremen’s Gesta Hammaburgensis ecclesiae pontificum" i Ed Lars Boje Mortensen: The Making of Christian Myths in the Periphery of Latin Christendom (c. 1000-1300), 2006. Bergen. s. 17-51.
Geary, P.: "Reflections on historiography and the Holy: Center and Periphery" i Ed Lars Boje Mortensen: The Making of Christian Myths in the Periphery of Latin Christendom (c. 1000-1300), 2006. Bergen. s. 323-29.
Howe, J. M.: "The Conversion of the Physical World. The Creation of a Christian Landscape" i Ed. James Muldoon: Varieties of Religious Conversion in the Middle Ages, 1997. s. 63-78.
Tveito, O.: Ad fines orbis terrae – like til jordens ender. En studie i primær trosformidling i nordisk kristningskontekst, Det kirkelige speil – Vita Ansgarii. Kapitel 7, s. 149-171.
Skre, D.: "Kristning, misjon og konversjon i Norges vikingtid. Kristendommen i Danmark før 1050" i (Red.) Niels Lund: 2004. Roskilde. s. 235-52.
Janson, H.: "Making Enemies. Aspects on the Formation of Conflicting Identities in the Southern Baltics around the Year 1000" i Ed. Tuomas Lehtonen & Kurt V. Jensen: Medieval History Writing and Crusading Ideology, 2005. Helsinki. s. 141-53.
Bartlett, R.: "The Conversion of a Pagan Society in the Middle Ages." i History. The Journal of The Historical Association, 1985. vol. 70, number 229 s. 185-201.
Russel, F.H.: "Love and Hate in Medieval Warfare: The Contribution of Saint Augustine." i Nottingham Medieval Studies, 1987. 31, s. 108-124.
Jensen, C. S.: "'Gå ud på vejene og langs gærderne og nød dem til at komme, så mit hus kan blive fyldt' Pavernes holdning til tvangsomvendelser og mission i Baltikum omkring år 1200" i Reformationer. Universitet – Kirkehistorie – Luther. Festskrift til Steffen Kjeldgaard-Pedersen 28. april 2006, 2006. København. s. 185-200.
Gregory of Tours: The History of the Franks, 1974/1977. Penguin Classics . II,27-34 (s.139-150); V,32-34 (294-96); V,38 (301-303); V,43-44 (307-12); VI,5-6 (329-37); VI,10 (340-41); VI,17 (347-48); VI,40 (371-74); VII,31 (413-15); X,1 (543-47); X,24-25 (582-86).
The Letters of Gregory the Great. Translated with introduction and Notes, by John R.C. Martyn. Pontificial Institute of Medieval Studies vol 1-3, 2004, vol 3, s. 782-84; 802-3. (Gregors brev til Kong Ethelbert, juni 601; Gregors brev til Abbed Mellitus, juli 601).
Bede – A History of the English Church and People. A New Translation by Leo Sherley-Price. The Penguin Classics 1955 ell. senere: Kap I,20 (s. 62-63); kap I,21 (s. 64-65); kap I,23-29 (s. 66-86); III,2 (s.139-141); III,25 (s. 183-88); V,13-14 (s. 290-93).
Adam af Bremens krønike. Oversat og kommenteret af Allan A. Lund. Wormianum 2000: Første bog 8-34 (s. 49-68); 54-60 (s. 78-81); Anden bog, kapitel 24-28 (s. 97-101); 42-44 (s. 108-110)
Bernhard af Clairvaux: "To all the Faithful", Letter 394. i: The Letters of St Bernard of Clairvaux , Translated by Bruno Scott James. Sutton Publishing 1998, s. 466-68.
Helmold von Bossau: Slawenchronik. Wissenschaftliche Buchgesellschaft 1973: bog I,3 (s. 43-47); bog I,6 (s. 53-55); I,16 (s. 85-91); I,24 (s. 109-111); bog II,108-109 (s. 371-81).
Saxos Danmarkshistorie. Oversat af Peter Zeeberg. Gads Forlag 2000: Fjortende Bog, kapitel 39 (s. 730-48).
Lukas Evangeliet kapitel 14,15-24
Henricus Lettus, The Chronicle of Henry of Livonia. Translated and with a new introduction and notes by James A. Brundage, New York 2003, s. 25-68
Rimberti Vita Ansgari/Rimbert Leben Ansgars: Quellen des 9. und 11. Jahrhunderts zur Geschichte der Hamburgischen Kirche und des Reiches. Darmstadt 1973. Kapitel 19 og 20, s. 57-69.
Annales Regni Francorum/Die Reichsannalen, Quellen zur Karolingischen Reichsgeschichte, Bd. I, Darmstadt 1974. Året 772, s. 26-27.
The Heliand. The Saxon Gospel. A Translation and Commentary by G. Ronald Murphy, S.J., Oxford 1992, s. 158-66.
Carolingian Civilization – A Reader. Ed.Paul E. Dutton, Broadview Press 1993, s. 58-69.