Kajitani, K & Nishitani, T <br/><br/>
Hyperbolic cauchy problem 
K. Kajitani & T. Nishitani 
 - Berlin  Springer  1991 
 - vii  168 
 - Lecture notes in mathematics 1505 .
<br/><br/><label>ISBN: </label>3540550186 
<br/><br/><label>Dewey Class. No.: </label>10.05+22  / KAJI