Has participated in:
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Presse im Exil : Beitr. zur Kommunikationsgeschichte d. dt. Exils 1933 - 1945
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Social theories of the press : constituents of communication research, 1840s to 1920s
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In the company of media : cultural constructions of communication, 1920s - 1930s
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Ferdinand Tönnies on public opinion : selections and analyses