An adaptive equalizer with significantly reduced number of operations. - Dietrich Maiwald; Hans-Peter Kaeser; Felix Closs (ICASSP, 1978)

The SP16 signal processor. - Gottfried Ungerboeck; Dietrich Maiwald; Hans-Peter Kaeser; Pierre R. Chevillat (ICASSP, 1984)

Architecture of a Digital Signal Processor. - Gottfried Ungerboeck; Dietrich Maiwald; Hans-Peter Kaeser; Pierre R. Chevillat; Jean Paul Beraud (IBM J. Res. Dev., 1985)