J. Lin, E. Keogh, S. Lonardi, and B. Chiu. Proceedings of the 8th ACM SIGMOD Workshop on Research Issues in Data Mining and Knowledge Discovery, page 2--11. New York, NY, USA, ACM, (2003)
J. Lin, E. Keogh, S. Lonardi, J. Lankford, and D. Nystrom. Proceedings of the tenth ACM SIGKDD international conference on Knowledge discovery and data mining, page 460--469. ACM, (2004)