The published version of this article is available through the publisher's website. [Link]
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Citation
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]