Operations research :  proceedings 1989 :  papers of the 18th annual meeting 
edited by K.-P. Kistner ... et al. 
 - Berlin :  Springer-Verlag,  1990. 
 - xii, 598 pages. :  illustrations. ;  24 cm. 
<br/><br/><br/>engger. 
<br/><br/><label>ISBN: </label>3540524894 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operation research--Congresses.