Hyperbolic equations and waves :  battlle seattle 1968 recontres / 
edited by M. Froissart 
 - Berlin :  Springer-Verlag,  1968 
 - viii, 393 p. :  ill. ;  24 cm. 
<br/><br/> English or French. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>76-086498 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions, Exponential