Economic Growth and advertising expenditures in different media in different countries
R.G. Picard; Dr. Piet Bakker (Lector); R. van der Wurff
The impact of the internet on business models in the media industry - a by-sector analysis
S. Lax; H.-K. Ellonen; M. Ala-Fossi; Dr. Piet Bakker (Lector); L. Küng
The impact of the Internet on users
Dr. Piet Bakker (Lector); C. Sabata