SemanticSBML is a free software distributed under the GNU public license. It is developed by the semanticSBML team at Humboldt University Berlin with financial support from the European integrated project BaSysBio. For feedback, please use our bug tracker at SourceForge or send us an email (general comments and suggestions to Wolfram Liebermeister, technical questions and bug reports to Timo Lubitz or Falko Krause. If you are using semanticSBML for your work, please cite our papers.