Heikkila, Seppo. <br/><br/>
Monotone iterative techniques for discontinuous nonlinear differential equations / 
Seppo Heikkila, V. Lakshmikantham. 
 - [S.l.] :  CRC Press,  1994. 
 - 536 p. ;  23 cm. 
 - Chapman & hall/crc pure and applied mathematics. .
 - Chapman & hall/crc pure and applied mathematics. .
<br/><br/><label>ISBN: </label>0824792246 9780824792244 
<br/><br/><label>Dewey Class. No.: </label>515.355