1. Aarts, K. (1995). Intermediate Organisations and Interest Representation. In H. Klingemann & D. Fuchs (Eds.), Citizens and the State (pp. 227–257). Oxford University Press.
2. Agustín, Ó. G., & Jørgensen, M. (2016). Uplifting the Masses? Radical Left Parties and SMs during the Crisis. In L. March & D. Keith (Eds.), Europe’s Radical Left: From Marginality to the Mainstream? (pp. 71–88). Rowman and Littlefield International.
3. Allern, E. (2010). Political Parties and Interest Groups in Norway. ECPR Press.
4. Allern, E. (2013). The Contemporary Relationship of ‘New Left’ and ‘New Right’ Parties with Interest Groups: Exceptional or Mainstream? The Case of Norway’s Socialist Left and Progress Party. Scandinavian Political Studies, 36(1), 67–90.
5. Allern, E., & Bale, T. (2012a). Political Parties and Interest Groups Disentangling Complex Relationships. Party Politics, 18(1), 7–25.