Two-dimensional digital filters without overflow oscillations and instability due to finite word length. - Spyros G. Tzafestas; A. Kanellakis; Nickolas J. Theodorou (IEEE Trans. Signal Process., 1992)

Estimation of the Stability Margin of 2-D State-Space Discrete Systems. - Panajotis Agathoklis; A. Kanellakis (ISCAS, 1994)

Floating-Point Roundoff Noise Analysis of 2-D State-Space Digital Filters. - A. Kanellakis; Panajotis Agathoklis (ISCAS, 1994)

A New Digital Filter Structure Generated by the Schwarz Matrix Form. - A. Kanellakis; Panajotis Agathoklis (ISCAS, 1994)

A note on the orthogonal realization of allpass digital filters and their finite wordlength performance. - A. Kanellakis; Panajotis Agathoklis; A. Tawfik (IEEE Trans. Signal Process., 1996)