Bender Carl M. <br/><br/>
Advanced Mathematical Methods for Scientistsand Engineers I  Asymptotic methods and Perturbation Theory 
/ by Carl M.Bender 
 - 3rd.ed 
 - New Delhi  Springer  2013 
 - 593p. 
<br/><br/><label>ISBN: </label>9780387989310 
<br/><br/><label>Dewey Class. No.: </label>515.35  / BEN/A