To cite the package 'bigRR' or the method 'HEM' in publications use:

Xia Shen, Moudud Alam, Freddy Fikse and Lars Ronnegard (2013). A novel generalized ridge regression method for quantitative genetics. Genetics, 193, 1255-1268 URL http://www.genetics.org/content/193/4/1255.full

Corresponding BibTeX entry:

  @Article{,
    title = {A novel generalized ridge regression method for
      quantitative genetics},
    author = {Xia Shen and Moudud Alam and Freddy Fikse and Lars
      Ronnegard},
    journal = {Genetics},
    year = {2013},
    volume = {193},
    number = {4},
    pages = {1255-1268},
    url = {http://www.genetics.org/content/193/4/1255.full},
  }