Long term preservation of digital documents :  principles and practices / 
Uwe M. Borghoff... [et al.]  
 - Heidelberg :  Springer,  2010. 
 - xii, 274 p. :  ill. ;  25cm 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references.  
<br/><br/><label>ISBN: </label>9783642070174 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Preservation of digital documents.