Howard, Ian. <br/><br/>
Swein Forkbeard's Invasions and the Danish Conquest of England, 991--1017  [electronic resource]. / 
Ian Howard. 
 - Cambridge :  The University Press,  2012 
 - 1 online resource (xiv, 189 p.) 
<br/><br/>Includes bibliographic references and index 
<br/><br/><label>ISBN: </label>9781846151590 (ebook) 
<br/><br/><label>Subjects--Personal Names: </label><br/>Sweyn, King of Denmark, d. 1014