To cite package iccbeta in publications use:

Agunis, H. & Culpepper, S. A. (2015). An expanded decision making procedure for examining cross-level interaction effects with multilevel modeling. Organizational Research Methods.

Corresponding BibTeX entry:

  @Article{,
    title = {An expanded decision making procedure for examining
      cross-level interaction effects with multilevel modeling},
    author = {Herman Aguinis and Steven Andrew Culpepper},
    journal = {Organization Research Methods},
    year = {2015},
    url = {http://www.hermanaguinis.com/pubs.html},
    pdf = {http://www.hermanaguinis.com/ORM2015.pdf},
    doi = {10.1177/1094428114563618},
  }