Reference:
  Author: Sean Mauch and Mark Stalzer
  Title: Efficient Formulations for Exact Stochastic Simulation of Chemical Systems
  Journal: IEEE/ACM Trans. Comput. Biol. Bioinformatics
  Year: 2011
  Volume: 8
  Number: 1
  Pages: 27-35
  DOI: 10.1109/TCBB.2009.47
  URL: http://dl.acm.org/citation.cfm?id=1916605
