A 69-V CMOS DC/DC converter for ISDN applications. - A. Koroncai; J. Massoner; Heinz Zitta; Hubert Rothleitner; A. Lechner (IEEE J. Solid State Circuits, 1988)

A robust smart power bandgap reference circuit for use in an automotive environment. - Wolfgang Horn; Heinz Zitta (IEEE J. Solid State Circuits, 2002)