Giacaglia G E O <br/><br/>
Perturbation methods in non-linear systems 

 - New York   Springer verlag       1972 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>69474 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ordinary differential equation
<br/><br/><label>Dewey Class. No.: </label>B331, L2