@conference {DBLP:conf/pkdd/GiannottiMT01,
	title = {Specifying Mining Algorithms with Iterative User-Defined Aggregates: A Case Study},
	booktitle = {PKDD},
	year = {2001},
	pages = {128-139},
	author = {Fosca Giannotti and Giuseppe Manco and Franco Turini}
}
