Nonlinear evolution equations that change type 

 - New York :  Springer-Verlag,  1990 
 - xiv, 284 p. :  ill. ;  25 cm. 
 - The IMA volumes in mathematics and its applications ;  v. 27 .
<br/><br/> Based on the proceedings of a workshop which was an integral part of the 1988-89 IMA program on nonlinear waves"--Foreword." 
<br/><br/><label>ISBN: </label>0387973532 (Springer-Verlag New York Berlin Heidelberg : acid-free paper) | 3540973532 (Springer-Verlag Berlin Heidelberg New York : acid-free paper)