Operational research' 81 : proceedings of the Ninth IFORS International Conference on Operational research = Actes de la Neuvieme Conference Internationale de recherche Operationnelle : Hambourg, allemagne, juillet 20-24, 1981 - International Conference on Opertional Research 1981 : Hamburg, Germany); Brans, Jean Pierre (Amsterdam : North Holland, 1981)
Incluye bibliografias.
Keywords: INVESTIGACION OPERACIONAL -- CONGRESOS; ADMINISTRACION