Clarke, Harold; Whiteley, Paul; Borges, Walter; Sanders, David; Stewart, Marianne (2016). «Modelling the dynamics of support for a right-wing populist party: the case of UKIP». Journal of Elections, Public Opinion and Parties26 (2): 135-154. ISSN1745-7289. doi:10.1080/17457289.2016.1146286.
Clarke, Harold; Whiteley, Paul; Borges, Walter; Sanders, David; Stewart, Marianne (2016). «Modelling the dynamics of support for a right-wing populist party: the case of UKIP». Journal of Elections, Public Opinion and Parties26 (2): 135-154. ISSN1745-7289. doi:10.1080/17457289.2016.1146286.