Reference:
  Author:  Ali Ebrahim and Joshua A Lerman and Bernhard O Palsson and Daniel R Hyduke
  Title: "COBRApy: COnstraints-Based Reconstruction and Analysis for Python"
  Journal: BMC Systems Biology
  Year: 2013
  Volume: 7
  Number: 74
  DOI: 10.1186/1752-0509-7-74
  PMID: 23927696
  URL: http://www.biomedcentral.com/1752-0509/7/74
