Campbell, S. L. <br/><br/>
Singular systems of differential equations/ 
S. L. Campbell. 
 - San Francisco:  Pitman Advanced Publishing Program,  c1980. 
 - 176 p. ;  25 cm. 
 - Pitman Research Notes in Mathematics Series;  40. .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 167-171. 
<br/><br/><label>ISBN: </label>0822484382 :  $17.00 0273084380 (pbk) : 
<br/><br/><label>LCCN: </label>79020908 //r84 
<br/><br/><label>Nat. Bib. No.: </label>GB80-25548 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.<br/>Equations, Simultaneous.
<br/><br/><label>Dewey Class. No.: </label>515.35  / C191s