@INPROCEEDINGS{
        BKS05,
        AUTHOR	  = "Benjamin Bustos and Daniel Keim and Tobias Schreck",
        TITLE	  = "A pivot-based index structure for combination of feature vectors",
        BOOKTITLE = "Proc. 20th Annual ACM Symposium on Applied Computing, Multimedia and Visualization Track (SAC-MV'05)",
	PUBLISHER = "ACM Press",
	PAGES	  = "1180--1184",
        YEAR	  = "2005"
}