Novel immitance inverters. - Josef Cajka; Michal Olsak; Kamil Vrba; Ivo Lattenberg; Ivan Koudar (APCCAS (1), 2002)

Synthetic circuit elements of higher order with current conveyors. - Ivo Lattenberg; Kamil Vrba; Tomás Dostál; Ivan Koudar (APCCAS (1), 2002)

Variable gain differential current feedback amplifier. - Ivan Koudar (CICC, 2004)

Balanced Low Noise High Dynamic Photodiode Interface for Automotive. - Ivan Koudar (CICC, 2006)