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Annales Kamenzenses, in Monumenta Germaniae Historica, Scriptores, vol. 19, ed. ...
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Annales Kamenzenses, in Monumenta Germaniae Historica, Scriptores, vol. 19, ed. Georg Heinrich Pertz (Hannover: Hahn, 1866), p. 581, entry for 990, (hereafter Annales Kamenzenses).