Reference:
  Author: David L Applegate and William Cook and Sanjeeb Dash and Daniel G Espinoza
  Title: Exact solutions to linear programming problems
  Journal: Operations Research Letters
  Year: 2007
  Volume: 35
  Number: 6
  Pages: 693-699
  DOI: 10.1016/j.orl.2006.12.010
  URL: http://www.sciencedirect.com/science/article/pii/S0167637707000211
