To cite MLMES in publications use:

Sanders E, Konold T, Cheng Y (in press). “Model-based effect sizes for multilevel linear regression coefficients.” Methodology: European Journal of Research Methods for the Behavioral and Social Sciences.

Corresponding BibTeX entry:

  @Article{,
    title = {Model-based effect sizes for multilevel linear regression
      coefficients},
    author = {Elizabeth A. Sanders and Timothy R. Konold and Yijun
      Cheng},
    journal = {Methodology: European Journal of Research Methods for
      the Behavioral and Social Sciences},
    year = {in press},
  }