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Operations research in the management of the airlines
Etschmaier, M. M., (1974)
Unternehmensforschung und Ökonomie in der zivilen Luftfahrt : Küttner, Rolf
Kuettner, Rolf, (1967)
A recursive optimization and simultation approach to analysis with an application to transportation systems
Nolan, Richard L., (1972)