To cite gdsfmt in publications use:

Xiuwen Zheng, David Levine, Jess Shen, Stephanie M. Gogarten, Cathy Laurie, Bruce S. Weir. A High-performance Computing Toolset for Relatedness and Principal Component Analysis of SNP Data. Bioinformatics 2012;<doi:10.1093/bioinformatics/bts606>

Xiuwen Zheng, Stephanie M. Gogarten, Michael Lawrence, Adrienne Stilp, Matthew P. Conomos, Bruce S. Weir, Cathy Laurie, David Levine. SeqArray -- A storage-efficient high-performance data format for WGS variant calls. Bioinformatics 2017;<doi:10.1093/bioinformatics/btx145>

Corresponding BibTeX entries:

  @Article{,
    title = {A High-performance Computing Toolset for Relatedness and
      Principal Component Analysis of SNP Data},
    author = {Xiuwen Zheng and David Levine and Jess Shen and Stephanie
      Gogarten and Cathy Laurie and Bruce Weir},
    journal = {Bioinformatics},
    year = {2012},
    doi = {10.1093/bioinformatics/bts606},
    volume = {28},
    number = {24},
    pages = {3326-3328},
  }

  @Article{,
    title = {SeqArray -- A storage-efficient high-performance data
      format for WGS variant calls},
    author = {Xiuwen Zheng and Stephanie Gogarten and Michael Lawrence
      and Adrienne Stilp and Matthew Conomos and Bruce Weir and Cathy
      Laurie and David Levine},
    journal = {Bioinformatics},
    year = {2017},
    doi = {10.1093/bioinformatics/btx145},
  }