@incollection{roberts2014novel,
  title = {Novel visual metaphors for multivariate networks},
  author = {Roberts, Jonathan C and Yang, Jing and Kohlbacher, Oliver and Ward, Matthew O and Zhou, Michelle X},
  booktitle = {Multivariate Network Visualization},
  pages = {127--150},
  year = {2014},
  publisher = {Springer}
}