| русский | rus-000 |
| исследование операций | |
| беларуская | bel-000 | даследаванне аперацый |
| English | eng-000 | OR |
| English | eng-000 | operation research |
| English | eng-000 | operational research |
| English | eng-000 | operations analysis |
| English | eng-000 | operations research |
| Esperanto | epo-000 | operaciesploro |
| français | fra-000 | recherche opérationnelle |
| magyar | hun-000 | operációkutatás |
| русский | rus-000 | исследование технологических операций |