Whitbread 1959，第577–78頁: and þa he hamweard for . þa forðferde his broþor sunu . se wæs haten Odda . and he wæs Leodulfes sunu æþelinges . and se Leodulf wæs þæs ealdan Oddan sunu . and Eadweardes cininges dohtor sunu. Whitbread, L. Æthelweard and the Anglo-Saxon Chronicle. The English Historical Review. 1959, 74 (293): 577–89. doi:10.1093/ehr/lxxiv.293.577.
deutsche-biographie.de
Zotz 1998，第694–95頁. Zotz, Thomas. Otto I.. Neue Deutsche Biographie 19: 694–95. 1998 [2021-02-02]. （原始内容存档于2021-01-19）.
doi.org
Whitbread 1959，第577–78頁: and þa he hamweard for . þa forðferde his broþor sunu . se wæs haten Odda . and he wæs Leodulfes sunu æþelinges . and se Leodulf wæs þæs ealdan Oddan sunu . and Eadweardes cininges dohtor sunu. Whitbread, L. Æthelweard and the Anglo-Saxon Chronicle. The English Historical Review. 1959, 74 (293): 577–89. doi:10.1093/ehr/lxxiv.293.577.
