1. Banas, J. R., Velez-Solic, A.: Designing effective online instructor training and professional development. In: Virtual Mentoring for Teachers: Online Professional Development Practices: Online Professional Development Practices, p. 1 (2012)
2. Bergmann, J., Sams, A.: Flipping for mastery. Educ. Leadersh. 71, 24–29 (2014)
3. Bloom, B.S., Engelhart, M.D., Furst, E.J., Hill, W.H., Krathwohl, D.R.: Taxonomy of educational objectives: the classification of educational goals. In: Handbook I: Cognitive Domain. David McKay Company, New York (1956)
4. Bøgelund, P., Justesen, K., Kolmos, A., Bylov, S.M.: Undersøgelse af frafald og fastholdelse ved medialogi og andre uddannelser ved det Teknisk-Naturvidenskabelige Fakultet 2015–2016: Arbejdsrapport Nr. 1. Aalborg Universitet (2016)
5. Cabrera, A.F., Nora, A., Castaneda, M.B.: College persistence: structural equations modeling test of an integrated model of student retention. J. High. Educ. 64(2), 123–139 (1993)