He has also written on the history of political movements in Europe from the end of the 18th century until today, especially about Slovene Christian socialism and the history of Slovenian national questions.
Ia juga menulis tentang sejarah gerakan-gerakan politik di Slovenia dari akhir abad ke-19 hingga Perang Dunia II, terutama tentang sosialisme Kristen Slovenia dan pertanyaan sejarah nasional Slovenia.