Campbell S L <br/><br/>
Singular system of differential equations 

 - San Francisco    Pitman          1980 
 - 234p.  cm. 
 - Research notes in mathematics; 61 .
<br/><br/><label>Standard No.: </label>24526 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B33, M01.2