Ehlmann, Bryon K. <br/><br/>
Object Relationship Notation (ORN) for database applications : enhancing the modeling and implementation of associations 

 - New York  Springer  2009 
 - xix, 246p. ; 24 cm. 
<br/><br/><label>ISBN: </label>9780387095530 
<br/><br/><label>Dewey Class. No.: </label>004  / EHL