Fink-Hafner, Danica (2010), "Slovenia since 1989", Central and Southeast European Politics Since 1989, Cambridge University Press, p. 244, ISBN9781139487504, retrieved 9 November 2011
Zajc, Drago; Boh, Tomaž (2004), "Slovenia", The handbook of political change in Eastern Europe, Edward Elgar Publishing, p. 351, ISBN9781840648546, retrieved 9 December 2011