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Discount effects on media plans
Kaplan, Robert S., (1971)
Media selection by linear programming
Brown, Douglas B., (1965)
Hard and soft constraints in media scheduling
Kluyver, Cornelis A. de, (1978)
Ein heuristischer Ansatz zur Mediaselektion
Little, John D. C., (1974)
A media planning calculus
Little, John D. C., (1969)
Little, John D. C., (1970)