VHF Highly Linear Fully-balanced CMOS OTA. - Adam Wyszynski; Rolf Schaumann (ISCAS, 1993)

Frequency and Phase Tuning of Continuous-Time Integrated Filters using Common-Mode Signals. - Adam Wyszynski; Rolf Schaumann (ISCAS, 1994)

Avoiding Common-Mode Feedback in Continuous-Time Gm-C Filters by Use of Lossy Integrators. - Adam Wyszynski; Rolf Schaumann (ISCAS, 1994)