@INPROCEEDINGS { AUTHOR = "Gonzalo Navarro and Leena Salmela", TITLE = "Indexing Variable Length Substrings for Exact and Approximate Matching", EDITOR = "Jussi Kalgren and Jorma Tarhio and Heikki Hyyr{\"o}", BOOKTITLE = "16th International Symposium on String Processing and Information Retrieval (SPIRE)", PAGES = "214-221", MONTH = "Aug", YEAR = "2009", ADDRESS = "Saariselk{\"a}, Finland", PUBLISHER = "Springer-Verlag", SERIES ="Lecture Notes in Computer Science", NUMBER = "5721", ISBN = "978-3-642-03783-2", }