OR operational research quarterly 
 Operational research quarterly 

 - London :  OPERATIONAL RESEARCH SOCIETY, 
 - Trimestral 
<br/><br/><label>ISSN: </label>0030-3623 
 = OR operational research quarterly 
 = OPER. RES. Q. 
<br/><br/><label>Subjects--Index Terms: </label>MATEMATICA