1. Andersen, J.G. 1993. Politisk deltagelse i 1990 sammenlignet med 1979 (Political Participation in 1990 Compared with 1979). In J. Andersen, A.D. Christensen , K. Langberg, B. Siim & L. Torpe (eds.), Medborgerskab. Demokrati og politisk deltagelse (Citizenship, Democracy and Political Participation) , pp. 45-75. Herning: Systime.
2. Bacon, N. & Storey, J. 1996. Individualism and Collectivism and the Changing Role of Trade Unions. In P. Ackers, C. Smith & P. Smith (eds.), The New Workplace and Trade Unionism. Critical Perspectives on Work and Organization, pp. 41-76. London: Routledge.