Indexing Values of Time Sequences. - Ling Lin 001; Tore Risch; Martin Sköld; Dushan Z. Badal (CIKM, 1996)

Using a Sequential Index in Terrain-Aided Navigation. - Ling Lin 001; Tore Risch (CIKM, 1997)

Querying Continuous Time Sequences. - Ling Lin 001; Tore Risch (VLDB, 1998)