On the reconstruction of signals by a finite number of samples. - Sigmar Ries (Signal Process., 1991)

Reconstruction of real and analytic band-pass signals from a finite number of samples. - Sigmar Ries (Signal Process., 1993)

Towards beamforming for UWB signals. - Sigmar Ries; Thomas Kaiser 001 (EUSIPCO, 2004)

Digital time-delay beamforming with interpolated signals. - Sigmar Ries (Signal Process., 2004)

Highlights of UWB impulse beamforming. - Sigmar Ries; Thomas Kaiser 001 (EUSIPCO, 2005)

Ultra wideband impulse beamforming: It is a different world. - Sigmar Ries; Thomas Kaiser 001 (Signal Process., 2006)