@conference {tagspheres,
	title = {TagSpheres: Visualizing Hierarchical Relations in Tag Clouds},
	booktitle = {Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications},
	year = {2016},
	pages = {15-26},
	keywords = {conference},
	author = {J{\"a}nicke, Stefan and Gerik Scheuermann}
}
