Fryklund, Björn (2013). «Populism - Changes Over Time and Space: a comparative and retrospective analysis of populist parties in the Nordic countries from 1965 to 2012». I Wodak, Ruth m.fl. Media of Right-Wing Populism in Europe(PDF) (på engelsk). Bloomsbury Academic. ISBN978-1-780-93232-3. Arkivert fra originalen(PDF) 13. mai 2019. Besøkt 3. september 2014.
Fryklund, Björn (2013). «Populism - Changes Over Time and Space: a comparative and retrospective analysis of populist parties in the Nordic countries from 1965 to 2012». I Wodak, Ruth m.fl. Media of Right-Wing Populism in Europe(PDF) (på engelsk). Bloomsbury Academic. ISBN978-1-780-93232-3. Arkivert fra originalen(PDF) 13. mai 2019. Besøkt 3. september 2014.