Eckhaus, W <br/><br/>
Asymptotic analysis of singular perturbations 
W. Eckhaus 
 - Amsterdam  North-Holland Pub. Co.  1979 
 - xi  287 
 - Studies in mathematics & its applications 9 .
<br/><br/><label>ISBN: </label>0444853065 
<br/><br/><label>Dewey Class. No.: </label>4.04  / ECKH