International Conference FCT '89.(Szeged, Hungary ,1989) <br/><br/>
Fundamentals of computation theory   
ed.by J. Csirik, J. Demetrovics , F. Gecseg. 
 - New York  Springer-Verlag  1989 
 - xi, 493p. 
 - Lecture notes in computer science  No.380 .
<br/><br/><label>ISBN: </label>3387514988 
<br/><br/><label>Dewey Class. No.: </label>004.0151  / N891