Knöpp, Friedrich, <br/><br/>
Karl und Widukind. 

 - Frankfurt am Main,  M. Diesterweg,  1935. 
 - 50, [1] p.  21 cm. 
 - Grundlagen geschichtlicher Urteilsbildung,  Heft 1 .
<br/><br/> Selections, chiefly from medieval sources. 
<br/><br/>"Quellen und Literatur": p. 50-[51] 
<br/><br/><label>LCCN: </label>af 50000008  
<br/><br/><label>Subjects--Personal Names: </label><br/>Charlemagne, Emperor,  742-814. <br/>Widukind, active 776-785. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Saxony (Germany)--History--Sources.--To 1423
<br/><br/><label>LC Class. No.: </label>DD801.S361  / K6 
<br/><br/><label>Dewey Class. No.: </label>943.21