@InBook{webcat,
	author = 	{T. Hülsbusch and F. Dridi and G. Neumann},
	title = 	{Classification in the Information Age},
	year = 	{1999},
	month = 	{February},
	category = 	{NM, web},
	ps = 	{http://nm.wu-wien.ac.at/research/publications/GfKl98.ps},
	pdf = 	{http://nm.wu-wien.ac.at/research/publications/GfKl98.pdf},
	editor = 	{W. Gaul, H. Locarek-Junge},
	chapter = 	{Visualization and Categorization of Cached Hypermedia Data},
	pages = 	{387--394},
	publisher = 	{Springer Verlag},
}