Fuzzy information granules in time series data. - Marco Ortolani; Heiko Hofer; David E. Patterson; Frank Höppner; Michael R. Berthold (FUZZ-IEEE, 2002)

Large scale mining of molecular fragments with wildcards. - Heiko Hofer; Christian Borgelt; Michael R. Berthold (Intell. Data Anal., 2004)

Fuzzy information granules in time series data. - Michael R. Berthold; Marco Ortolani; David E. Patterson; Frank Höppner; Ondine Callan; Heiko Hofer (Int. J. Intell. Syst., 2004)