@inbook { WKS:2012,
	title = {Glyphs for Non-Linear Vector Field Singularities},
	booktitle = {Topological Methods in Data Analysis and Visualization II},
	year = {2012},
	pages = {177-190},
	publisher = {Springer},
	organization = {Springer},
	address = {Berlin, Germany},
	author = {Alexander Wiebel and Stefan Koch and Gerik Scheuermann},
	editor = {Ronny Peikert and Hauser, H. and Fuchs, R.}
}
