Articles
Book chapters
Grund, S., Lüdtke, O., & Robitzsch, A. (2019).
Missing data in multilevel research. In: Humphrey, S. E. & LeBreton, J. M. (Eds.),
Handbook for multilevel theory, measurement, and analysis.
Washington, DC: American Psychological Association
doi: 10.1037/0000115-017
[Link]