O'Malley, Robert <br/><br/>
Introduction to singular perturbations 
Robert O'Malley 
 - New York   Academic Press  1974 
 - viii,206p.;  23 cm. -- 
 - Applied mathematics and machanics ; an international series of monographs .
<br/><br/> Includes reference and index 
<br/><br/><label>Dewey Class. No.: </label>515.35  / OMA;1