To cite hapassoc in publications use:

Burkett K, McNeney B and Graham J (2004). A note on inference of trait associations with SNP haplotypes and other attributes in generalized linear models. Hum Hered, 57:200-206

Burkett K, Graham J and McNeney B (2006). hapassoc: Software for Likelihood Inference of Trait Associations with SNP Haplotypes and Other Attributes. J Stat Soft, 16(2):1-19

Corresponding BibTeX entries:

  @Article{,
    title = {A note on inference of trait associations with SNP
      haplotypes and other attributes in generalized linear models.},
    author = {K. Burkett and B. McNeney and J. Graham},
    journal = {Hum Hered},
    volume = {57},
    year = {2004},
    pages = {200--206},
    url = {http://stat.sfu.ca/statgen/research/hapassoc.html},
  }

  @Article{,
    title = {hapassoc: Software for Likelihood Inference of Trait
      Associations with SNP Haplotypes and Other Attributes.},
    author = {K. Burkett and J. Graham and B. McNeney},
    journal = {J Stat Soft},
    volume = {16},
    number = {2},
    year = {2006},
    pages = {1--19},
    url = {http://stat.sfu.ca/statgen/research/hapassoc.html},
  }