S. Hammerstein

Effects of working memory updating on children's arithmetic performance and strategy use: A study in computational estimation.

P. Lemaire, G. Büttner, Sebastian Poloczek, 2019, Journal of experimental child psychology.

Effects of presentation modality and duration on children’s strategy use: A study in computational estimation

P. Lemaire, G. Büttner, Sebastian Poloczek, 2021, Quarterly journal of experimental psychology.

Effects of COVID-19-Related School Closures on Student Achievement-A Systematic Review

Andreas Frey, C. König, S. Hammerstein, 2021, Frontiers in Psychology.

Effects of COVID-19-Related School Closures on Student Achievement—A Systematic Review

C. König, S. Hammerstein, T. Dreisoerner, 2021 .

Children's mixed-rounding strategy use in computational estimation

G. Büttner, Sebastian Poloczek, S. Hammerstein, 2021, J. Numer. Cogn..