1. Abós, Á., Haerens, L., Sevil, J., Aelterman, N., & García-González, L. (2018). Teachers’ motivation in relation to their psychological functioning and interpersonal style: A variable-and person-centered approach. Teaching and Teacher Education, 74, 21–34.
2. Bakonyi, J. (2013). Studia podyplomowe, szkolenia i kursy jako równoległe formy podnoszenia kwalifikacji. Zeszyty Naukowe Wyższej Szkoły Humanitas. Zarządzanie, 2, 91–98.
3. Barańska, B., Zambrowska, M. (in press). Teachers’ perspective on the advantages and disadvantages of postgraduate studies allowing to teach mathematics as a second subject. Proceedings of the Contemporary Mathematics in Kielce 2020 Jan Kochanowski University in Kielce, Poland.
4. Bosse, M., & Törner, G. (2015). The practice of out-of-field teaching in mathematics classrooms–a German case study. In L. Sumpter (Ed.), Current state of research on mathematical beliefs XX: Proceedings of the MAVI-20 conference lultur och lärande (Vol. 4, pp. 77–88). Högskolan Dalarna University Press.
5. Colares, A. C. V., Castro, M. C. C. S., Barbosa Neto, J. E., & Cunha, J. V. A. D. (2019). Teacher motivation in stricto sensu postgraduation: An analysis based on self-determination theory. Revista Contabilidade & Finanças, 30(81), 381–395.