Reference:
  Author: Xavier Didelot and Daniel Lawson and Aaron Darling and Daniel Falush
  Title: Inference of Homologous Recombination in Bacteria Using Whole-Genome Sequences
  Journal: Genetics
  Year: 2010
  Volume: 186
  Number: 4
  Pages: 1435-1449
  DOI: 10.1534/genetics.110.120121
  PMID: 20923983
  URL: http://www.genetics.org/content/186/4/1435.abstract
  eprint: http://www.genetics.org/content/186/4/1435.full.pdf+html
