@conference {13561,
	title = {Graphical Tools and Techniques for Querying Document Databases},
	booktitle = {BSDIA},
	year = {1997},
	month = {1997///},
	pages = {213 - 224},
	author = {Sauvola,J. and David Doermann and Kauniskangas,H. and Shin,C. and Koivusaari,M. and Pietikainen,M.}
}
