Engzell, Per, Arun Frey, and Mark D. Verhagen. ‘Learning Loss Due to School Closures during the COVID-19 Pandemic’. Proceedings of the National Academy of Sciences 118, no. 17 (27 April 2021). https://doi.org/10.1073/pnas.2022376118.

Van Tongeren, D. R., DeWall, C. N., Chen, Z., Sibley, C. G., & Bulbulia, J. (2020, April 24). Van Tongeren et al. (2020) JPSP - Religious Residue. https://doi.org/10.1037/pspp0000288

Kamorowski, J., de Ruiter, C., Schreuder, M., Ask, K., & Jelicic, M. (2020, April 16). Forensic Mental Health Practitioners’ Use of Structured Risk Assessment Instruments, Views About Bias in Risk Evaluations, and Strategies to Counteract It. https://doi.org/10.31234/osf.io/te5c2

University of Amsterdam scientists launch website that seeks ideal COVID-19 exit strategy. (2020 April 21) Science|Business. https://sciencebusiness.net/network-updates/university-amsterdam-scientists-launch-website-seeks-ideal-covid-19-exit-strategy