1. Bakken, J. (1971). Synet på verdien av lærestoffet kontra arbeidsmåten i norsk folkeskole i vårt århundre [The view and value of the teaching material versus the working method in Norwegian primary and lower secondary schools in our century]. University of Oslo.
2. Brubacher, J. S. (1966). A history of the problems of education. McGraw-Hill Book Company.
3. Bugge, F. M. (1839). Det offentlige skolevæsens forfatning i adskillige tydske stater, tilligemed ideer til en reorganisation af det offentlige skolevæsen i Kongeriget Norge: En indberetning, afgiven til den Kgl. Norske Regjerings Departement for Kirke- og Undervisningsvæsenet, ifølge Kgl. Naadigst Resolution af 23de Juni 1836 [The constitution of public schools in several German states, along with ideas for the reorganization of public schools in the Kingdom of Norway: A report submitted to the Royal Norwegian Government, Department of Church and Education, according to Kgl. most gracious Resolution of 23rd June 1836]. Christiania, Norway: Chr. Grøndahl.
4. Christensen, T. (2003). Narratives of Norwegian governance: Elaborating the strong state tradition. Public Administration, 81(1), 163–190.
5. Christensen, T. (2005). The Norwegian state transformed? West European Politics, 28(4), 721–739.