Bereczky-Zámbó, C., Muzsnay, A., Szeibert, J., Szabó, C.: Test-enhanced learning in studying mathematics at secondary school and university. In: Proceedings of the 43rd Conference of the International Group for the Psychology of Mathematics Education (Vol. 4) /(Eds.) Graven, M., Venkat, H., Essien, A. & Vale, P, Minute Man Press, Hatfield, Hatfield, 124-124, 2019. ISBN: 9780639821573
Szabó, C., Muzsnay, A.: Efficiency of test-enhanced learning in teaching Number Theory. In: Proceedings Of the 42nd Conference of the International Group for the Psychology of Mathematics Education. Eds.: Ewa Bergqvist, Magnus Österholm, Carina Granberg, Lovisa Sumpter), University of Gothenburg, Gothenburg, 168, 2018, (ISSN 0771-100X.) ISBN: 9789176019061