A Si-Bipolar Technology for Optical Fiber Transmission Rates Above 10 Gb/s. - Jens L. Albers; Hans-Ulrich Schreiber (IEEE J. Sel. Areas Commun., 1991)

A Si bipolar phase and frequency detector IC for clock extraction up to 8 Gb/s. - Ansgar Pottbacker; Ulrich Langmann; Hans-Ulrich Schreiber (IEEE J. Solid State Circuits, 1992)