Homepage: http://circos.ca/
Reference: 
 Author: Martin I Krzywinski and Jacqueline E Schein and Inanc Birol and Joseph Connors and Randy Gascoyne and Doug Horsman and Steven J Jones and Marco A Marra
 Title: >
  Circos: An information aesthetic for comparative genomics
 Journal: Genome Research
 Year: 2009
 Volume: 19
 Number: 9
 Pages: 1639-45
 PMID: 19541911
 DOI: 10.1101/gr.092759.109
 URL: http://genome.cshlp.org/content/early/2009/06/15/gr.092759.109.abstract
 eprint: http://genome.cshlp.org/content/early/2009/06/15/gr.092759.109.full.pdf+html
Repository: http://circos.ca/software/download/
Screenshots: http://circos.ca/tutorials/images/small/
