Não informado. (2000). Informs. Institute for Operations Research and the Management Sciences.
Chicago-referens (17:e uppl.)Não informado. Informs. Baltimore, Md: Institute for Operations Research and the Management Sciences, 2000.
MLA-referens (8:e uppl.)Não informado. Informs. Institute for Operations Research and the Management Sciences, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.