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

 - San Francisco    Pitman          1980 
 - 176p.  cm. 
 - Research notes in mathemtics; 40 .
<br/><br/><label>Standard No.: </label>24524 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B33, M01