To cite the LPmerge package in publications use:

Endelman JB, Plomion C (2014). “LPmerge: an R package for merging genetic maps by linear programming.” Bioinformatics, 30, 1623-1624.

Corresponding BibTeX entry:

  @Article{,
    title = {LPmerge: an R package for merging genetic maps by linear
      programming},
    author = {J. B. Endelman and C. Plomion},
    year = {2014},
    journal = {Bioinformatics},
    volume = {30},
    pages = {1623-1624},
  }