@incollection{ware2013introduction,
  title={An introduction to graph theory},
  author={Ware, Stephen G.},
  editor={Samatova, Nagiza F. and Hendrix, William and Jenkins, John and Padmanabhan, Kanchana and Chakraborty, Arpan},
  booktitle={Practical Graph Mining with R},
  pages={9--26},
  year={2013},
  publisher={CRC Press},
  url={http://www.crcpress.com/product/isbn/9781439860847}
}