Creber 2019. Creber, Alison (22 April 2019). "Breaking Up Is Hard To Do: Dissolving Royal and Noble Marriages in Eleventh-Century Germany". German History. 37 (2): 149–171. doi:10.1093/gerhis/ghy108. ISSN0266-3554.
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Creber 2019. Creber, Alison (22 April 2019). "Breaking Up Is Hard To Do: Dissolving Royal and Noble Marriages in Eleventh-Century Germany". German History. 37 (2): 149–171. doi:10.1093/gerhis/ghy108. ISSN0266-3554.