Gestsdóttir SM, van Drie J, van Boxtel C. Teaching historical thinking and reasoning in upper secondary schools in Iceland: results of an observation study. nordidactica [Internet]. 13 augusti 2019 [citerad 16 april 2025];9(2019:2):90-113. Tillgänglig vid: https://journals.lub.lu.se/nordidactica/article/view/19962