  @Manual{graphpkg,
    title = {graph: graph: A package to handle graph data structures},
    author = {R. Gentleman and Elizabeth Whalen and W. Huber and S. Falcon},
    year = {2009},
    note = {R package version 1.22.2},
    url = {http://CRAN.R-project.org/package=graph},
  }

  @Manual{Rgraphvizpkg,
    title = {Rgraphviz: Provides plotting capabilities for R graph objects},
    author = {Jeff Gentry and Li Long and Robert Gentleman and Seth Falcon and Florian Hahne and Deepayan Sarkar and Kasper Hansen},
    year = {},
    note = {R package version 1.23.6},
  }

  @Manual{hypergraphpkg,
    title = {hypergraph: A package providing hypergraph data structures},
    author = {Seth Falcon and Robert Gentleman},
    year = {},
    note = {R package version 1.17.0},
  }


@article{hypergraphs,
  title={Hypergraphs and Cellular Networks},
  author={Steffen Klamt and Utz-Uwe Haus and Fabian Theis},
  year=2009,
  journal={{PLoS} Computational Biology},
  volume=5,
  issue=5,
  pages={e1000385},
  note={doi:10.1371/journal.pcbi.1000385}
}

 @ARTICLE{Gansner99anopen,
    author = {Emden R. Gansner and Stephen C. North},
    title = {An Open Graph Visualization System and Its Applications to Software Engineering},
    journal = {Software - Practice and Experience},
    year = {1999},
    volume = {30},
    pages = {1203--1233}
}

