Noise reduction of speech signals using the rank-revealing ULLV decomposition. - Peter Søren Kirk Hansen; Per Christian Hansen; Steffen Duus Hansen; John Aasted Sørensen (EUSIPCO, 1996)

Experimental comparison of signal subspace based noise reduction methods. - Peter Søren Kirk Hansen; Per Christian Hansen; Steffen Duus Hansen; John Aasted Sørensen (ICASSP, 1999)

Virtual seminar room-modelling and experimentation in horizontal and vertical integration. - Søren Forchhammer; Anders Fosgerau; Peter Søren Kirk Hansen; Steffen Duus Hansen; Ole Riis Jensen; Robin Sharp; John Aasted Sørensen (MMSP, 1999)

UTV Tools: Matlab templates for rank-revealing UTV decompositions. - Ricardo D. Fierro; Per Christian Hansen; Peter Søren Kirk Hansen (Numer. Algorithms, 1999)