Becker, Rolf. “Does the Small Class Size Really Matter? An Empirical Replication for Switzerland on the Relationship Between Class Size and School Performance in Lower Secondary School Using ÜGK COFO VeCoF Data”. Swiss Journal of Educational Research, vol. 47, no. 3, Dec. 2025, pp. 250-72, https://doi.org/10.24452/sjer.47.3.3.