Analog-to-digital conversion using unstable filters. - Hans-Andrea Loeliger; Lukas Bolliger; Georg Wilckens; Jonas Biveroni (ITA, 2011)

Control-based analog-to-digital conversion without sampling and quantization. - Hans-Andrea Loeliger; Georg Wilckens (ITA, 2015)

Control-Bounded Analog-to-Digital Conversion. - Hampus Malmberg; Georg Wilckens; Hans-Andrea Loeliger (Circuits Syst. Signal Process., 2022)