Nayfeh Ali Hasan <br/><br/>
Problems in pertubation 
Nayfeh Ali Hasan 
 - New York       John Wiley         1985 
 - xi, 556p.  cm. 
<br/><br/><label>Standard No.: </label>22933 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Differential equations<br/>Pertubation
<br/><br/><label>Dewey Class. No.: </label>B333:1, M5