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Author: "D. E. Freitag

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Month

January

Year

1947

Month

September

Year

2021

Author: "D. E. Freitag

Research papers

Improving cluster techniques

Catalogue: ESOMAR Congress 1974: The Challenges Facing Marketing Research

Company: GfK

Date: September 1, 1974

Author: D. E. Freitag

Research papers

The practical application of market segmentation

Catalogue: Seminar 1972: Segmentation And Typology

Company: GfK

Date: June 15, 1972

Authors: Andreas Winkler, D. E. Freitag