Reference:
  Author: Don Gilbert
  Title: Sequence file format conversion with command-line readseq
  Journal: Current Protocols in Bioinformatics
  Year: 2003
  Volume: Appendix 1
  Pages: E
  DOI: 10.1002/0471250953.bia01es00
  PMID: 18428689
  URL: http://onlinelibrary.wiley.com/doi/10.1002/0471250953.bia01es00/abstract
  eprint: http://onlinelibrary.wiley.com/doi/10.1002/0471250953.bia01es00/pdf
