@base . a , ; "Operations research" . a ; . a . , ; "Operations research." ; ; ; "0030-346X" ; ; ; ; ; "Operations research." , "Operations research" ; ; "http://pubsonline.informs.org/library/" , "http://www.jstor.org/journals/0030364x.html" , "http://or.journal.informs.org/" . a ; "0030-364X" ; . "Maryland" . a ; "20240221101302.052898"^^ ; ; . [ ] . .