Selman, Alan L. ed., <br/><br/>
Complexity theory retrospective  in honor of Juris Hartmanison the ocassion of his sixtieth birthday, July 5, 1988 
ed. by Alan L. Selman 
 - New York  Springer-Verlag  1990 
 - x, 234p. 
<br/><br/><label>ISBN: </label>0387973508 
<br/><br/><label>Dewey Class. No.: </label>511.3  / N902