Kelley,Walter.G <br/><br/>
Difference equations: an introduction with applications.- 2nded. / 
Walter.G.Kelley and Allan C. Peterson 
 - 2nded. 
 - New Delhi  Elsevier  2006 
 - ix,403 p. 
<br/><br/><label>Subjects--Index Terms: </label>Differential equations 
<br/><br/><label>Universal Decimal Class. No.: </label>517.962.2  / KEL