Sanghyun Park Wesley W. Chu Jeehee Yoon Chih-Cheng Hsu Efficient Searches for Similar Subsequences of Different Lengths in Sequence Databases. 23-32 2000 ICDE http://doi.ieeecomputersociety.org/10.1109/ICDE.2000.839384 db/conf/icde/icde2000.html#ParkCYH00