@misc{sbmlLevel2Version1,
  title = {{Systems Biology Markup Language} ({SBML}) {Level} 2: Structures and Facilities for Model Definitions},
  author = {Hucka, Michael and Finney, Andrew},
  year = {2003},
  publisher = {California Institute of Technology},
  url = {http://identifiers.org/combine.specifications/sbml.level-2.version-1},
  note = {Available from COMBINE at http://identifiers.org/combine.specifications/sbml.level-2.version-1}
}