Generalized solutions of first-order PDEs : 
Subbotin, A. I. 
 - Boston :  Birkhäuser,  1995 
 - xi, 312 p. :  ill. ;  25 cm. 
 - Systems & control .
<br/><br/><label>ISBN: </label>0817637400 (acid-free paper) | 3764337400 (acid-free paper)