@incollection{GDS:Ellsongknw03,
	author={J. Ellson,  E. R. Gansner,  E. Koutsofios,  S.C. North,  G. Woodhull},
	booktitle={Graph Drawing Software},
	editor={M. Junger and P. Mutzel},
	pages={127--148},
	publisher={Springer Verlag},
	title={Graphviz and Dynagraph - Static and Dynamic Graph Drawing Tools},
	year=2003,
}