Operational research '81 : proceedings of the ninth IFORS International Conference on Operational Research, Hamburg, Germany, July 20-24, 1981 = Actes de la Neuvi`eme IFORS Confʹerence Internationale de Recherche Opʹerationnelle, Hamburg, Allemagne, juillet 20-24, 1981 /
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| Format: | Book |
| Language: | English |
| Published: |
Amsterdam ; New York :
North-Holland Pub. Co.,
c1981.
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| Subjects: |