@inbook {630,
	title = {A Topology-Based Approach to Visualize the Thematic Composition of Document Collections},
	booktitle = {Text Mining},
	series = {Theory and Applications of Natural Language Processing},
	year = {2014},
	pages = {63-85},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	isbn = {978-3-319-12654-8},
	doi = {10.1007/978-3-319-12655-5_4},
	author = {Patrick Oesterling and Christian Heine and Gunther H. Weber and Gerik Scheuermann},
	editor = {Biemann, Chris and Mehler, Alexander}
}
