Reference:
  Author: Zavada, A. and Buckley, C.L. and Martinez, D. and Rospars, J-P. and Nowotny, T.
  Title: Competition-based model of pheromone component ratio detection in the moth
  Journal: PLoS ONE
  Year: 2011
  Volume: 6
  Number: 2
  Pages: e16308
  DOI: 10.1371/journal.pone.0016308
  PMID: 21373177
  URL: http://johnhommer.com/academic/code/cnrun
  eprint: http://www.plosone.org/article/fetchObjectAttachment.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0016308&representation=PDF