1 http://www.tecolab.ugent.be/publications.php Postprint version of Boelens, R., De Wever, B., & Voet, M. (2017). Four key challenges to the design of blended learning: A systematic literature review. Educational Research Review, 22, 1-18. https://doi.org/10.1016/j.edurev.2017.06.001 http://www.tecolab.ugent.be/pubs/2017_Boelens_De_Wever_Voet_EDUREV.pdf Authors Ruth Boelens http://www.tecolab.ugent.be/ruth.php Bram De Wever: http://www.tecolab.ugent.be/bram.php Michiel Voet: http://www.tecolab.ugent.be/michiel.php Archived on biblio.ugent.be The UGent Institutional Repository is the electronic archiving and dissemination platform for all UGent research publications. Ghent University has implemented a mandate stipulating that all academic publications of UGent researchers should be deposited and archived in this repository. Except for items where current copyright restrictions apply, these papers are available in Open Access. This item is the archived peer-reviewed author-version of: Four key challenges to the design of blended learning: A systematic literature review Ruth Boelens, Bram De Wever, & Michiel Voet In: Educational research review DOI: https://doi.org/10.1016/j.edurev.2017.06.001 Permanent link: https://authors.elsevier.com/a/1VGLx,dlbROvqY To refer to or to cite this work, please use the citation to the published version: Boelens, R., De Wever, B., & Voet, M. (2017). Four key challenges to the design of blended learning: A systematic literature review. Educational Research Review, 22, 1-18. doi:https://doi.org/10.1016/j.edurev.2017.06.001