Kevorkian, J & Cole, J.D <br/><br/>
Perturbation methods in applied mathematics 
J. Kevorkian & J.D. Cole 
 - New York  Springer  1981 
 - x  558 
 - Applied mathematical sciences 34 .
<br/><br/><label>ISBN: </label>3540905073 
<br/><br/><label>Dewey Class. No.: </label>4.04  / KEVO