1. Chair of Sociology, University of Hohenheim, 70599 Stuttgart, Germany
2. Chair of Sociology of Work and Organization, TU Dortmund, 44227 Dortmund, Germany
3. Sociological Research Institute (SOFI) Goettingen, 37085 Goettingen, Germany
4. Chair of Sociology/Work, Economy and Welfare, Ruhr-University Bochum, 44801 Bochum, Germany