@book { HPS:2009,
	title = {Topology-Based Methods in Visualization II},
	year = {2009},
	publisher = {Springer},
	organization = {Springer},
	address = {Berlin},
	isbn = {978-3-540-88605-1},
	editor = {Hege, H.-C. and Polthier, K. and Gerik Scheuermann}
}
