Reference:
  Author: Knight, Rob and Maxwell, Peter and Birmingham, Amanda and Carnes, Jason and Caporaso, J Gregory and Easton, Brett C and Eaton, Michael and Hamady, Micah and Lindsay, Helen and Liu, Zongzhi and Lozupone, Catherine and McDonald, Daniel and Robeson, Michael and Sammut, Raymond and Smit, Sandra and Wakefield, Matthew J and Widmann, Jeremy and Wikman, Shandy and Wilson, Stephanie and Ying, Hua and Huttley, Gavin A
  Title: "PyCogent: a toolkit for making sense from sequence"
  Journal: Genome Biology
  Year: 2007
  Volume: 8
  Number: 8
  Pages: R171
  DOI: 10.1186/gb-2007-8-8-r171
  PMID: 17708774
  URL: http://genomebiology.com/2007/8/8/R171
  eprint: http://genomebiology.com/content/pdf/gb-2007-8-8-r171.pdf
