To cite cocron in publications use:

Diedenhofen, B. (2016). cocron: Statistical Comparisons of Two or more Alpha Coefficients (Version 1.0-1). Available from http://comparingcronbachalphas.org

Corresponding BibTeX entry:

  @Manual{,
    title = {cocron: Statistical Comparisons of Two or more Alpha
      Coefficients},
    author = {Birk Diedenhofen},
    year = {2016},
    note = {(Version 1.0-1)},
    url = {http://comparingcronbachalphas.org},
  }