To cite the OpenRepGrid R package in publications:

Heckmann, M. (2011). OpenRepGrid - An R package for the analysis of repertory grids. University of Bremen, Germany, Diploma thesis.

Corresponding BibTeX entry:

  @Book{,
    author = {Mark Heckmann},
    title = {OpenRepGrid - An R package for the analysis of repertory
      grids},
    publisher = {University of Bremen, Germany, Diploma thesis},
    year = {2011},
    url = {http://www.openrepgrid.uni-bremen.de},
  }