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Informationstheorie und Werbung
Heyn, Wolfgang, (1966)
Seminar on "Below-the-Line Activities", Noordwijk aan Zee (Netherlands), 19-22 May 1971
(1971)
Seminar on "New Product Development", Today and Tommorow, Dubrovnik (Yugoslavia), 10th-13th October, 1979
(1979)
Combining simulation and panel data to obtain reach and frequency
Marc, Marcel, (1968)
Using reading quality in magazine selection
Marc, Marcel, (1966)
Reflexions on the concept of a general marketing model
Bertier, Patrice, (1969)