To see the listing of BibTeX references

- P. Ciaccia and M. Patella. Searching in Metric Spaces with User-Defined and Approximate Distances. In
*ACM Transactions on Database Systems*, 27(4), December 2002. - I. Bartolini, P. Ciaccia, and M. Patella. String Matching with Metric Trees Using an Approximate Distance. In
*Proceedings of the 9th International Symposium on String Processing and Information Retrieval (SPIRE 2002)*, Lisbon, Portugal, September 2002.

- P. Ciaccia and M. Patella. PAC Nearest Neighbor Queries: Approximate and Controlled Search in High-Dimensional and Metric Spaces. In
*Proceedings of the 16th International Conference on Data Engineering (ICDE 2000)*, San Diego, California, USA, March 2000.

- P. Ciaccia and M. Patella. Using the Distance Distribution for Approximate Similarity Queries in High-Dimensional Metric Spaces. In
*Proceedings of the 1st International Workshop on Similarity Search (IWOSS'99)*, Florence, Italy, September 1999. - P. Zezula, P. Savino, P. Ciaccia, and F. Rabitti. On the Region Proximity in Metric Spaces. In
*Proceedings of the 1st International Workshop on Similarity Search (IWOSS'99)*, Florence, Italy, September 1999. - P. Ciaccia and M. Patella. PAC Nearest Neighbor Queries: Using the Distance Distribution for Searching in High-Dimensional Metric Spaces. In
*Atti del Settimo Convegno Nazionale SEBD*, Como, Italy, June 1999. - P. Ciaccia, A. Nanni, and M. Patella. A Query-sensitive Cost Model for Similarity Queries with M-tree. In
*Proceedings of th 10th Australasian Database Conference (ADC'99)*, Auckland, New Zealand, January 1999.

- P. Ciaccia, M. Patella, and P. Zezula. A Cost Model for Similarity Queries in Metric Spaces. In
*Proceedings of the 17th ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems (PODS '98)*, Seattle, Washington, USA, June, 1998. - P. Zezula, P. Savino, G. Amato, and F. Rabitti. Approximate Similarity Retrieval with M-Trees.
*VLDB Journal 7(4)*, 1998. - P. Ciaccia, M. Patella, and P. Zezula. Processing complex similarity queries with distance-based access methods. In
*Proceedings of the 6th EDBT International Conference*, Valencia, Spain, March, 1998. - P. Zezula, P. Savino, F. Rabitti, G. Amato, and P. Ciaccia. Processing M-trees with Parallel Resources. In
*Eighth International Workshop on Research Issues in Data Engineering (RIDE'98)*, Orlando, Florida, February 1998. - P. Ciaccia, and M. Patella. Bulk loading the M-tree. In
*Proceedings of th 9th Australasian Database Conference (ADC'98)*, Perth, Australia, February 1998.

- P. Ciaccia, M. Patella, and P. Zezula. M-tree: An efficient access method for similarity search in metric spaces. In
*Proceedings of the 23rd VLDB International Conference*, Athens, Greece, September 1997. - P. Ciaccia, M. Patella, F. Rabitti, and P. Zezula. Indexing metric spaces with M-tree. In
*Atti del Quinto Convegno Nazionale SEBD*, Verona, Italy, June 1997.

- M. Patella. Similarity Search in Multimedia Databases. PhD thesis, Dipartimento di Elettronica Informatica e Sistemistica, Università degli Studi di Bologna, Bologna, Italy, February 1999.
- P. Ciaccia, M. Patella, F. Rabitti, and P. Zezula. Performance of M-tree, an access method for similarity search in metric spaces. Technical Report 13, HERMES ESPRIT LTR Projects, 1996.
- P. Zezula, P. Ciaccia, and F. Rabitti. M-tree: A dynamic index for similarity queries in multimedia databases. Technical Report 7, HERMES ESPRIT LTR Projects, 1996.