Differential equations with discontinuous righthand sides 
Filippov, A. F. 
 - Dordrecht [Netherlands] ; | Boston :  Kluwer Academic Publishers,  1988 
 - ix, 304 p. :  ill. ;  25 cm. 
<br/><br/> Translation of: Different︠s︡ialʹnye uravnenii︠a︡ s razryvnoĭ pravoĭ chastʹi︠u︡. | Includes index. 
<br/><br/><label>ISBN: </label>902772699X