10 GB/s bit-synchronizer circuit with automatic timing alignment by clock phase shifting using quantum-well AlGaAs/GaAs/AlGaAs. - Peter Wennekers; Ulrich Novotny; Axel Hülsmann; Gudrun Kaufel; Klaus Köhler; Brian Raynor; Joachim Schneider (IEEE J. Solid State Circuits, 1992)

Integrated laser-diode voltage driver for 20-Gb/s optical systems using 0.3- mu m gate length quantum-well HEMT's. - Zhi-Gong Wang; Manfred Berroth; Ulrich Nowotny; Manfred Ludwig; Peter Hofmann; Axel Hülsmann; Klaus Köhler; Brian Raynor; Joachim Schneider (IEEE J. Solid State Circuits, 1993)

An 18-34-GHz dynamic frequency divider based on 0.2- mu m AlGaAs/GaAs/AlGaAs quantum-well transistors. - Andreas Thiede; Manfred Berroth; Ulrich Nowotny; Jorg Seibel; Roland Bosch; Klaus Köhler; Brian Raynor; Joachim Schneider (IEEE J. Solid State Circuits, 1993)

7.5 Gb/s monolithically integrated clock recovery circuit using PLL and 0.3-μm gate length quantum well HEMT's. - Zhi-Gong Wang; Manfred Berroth; Ulrich Nowotny; Peter Hofmann; Axel Hiilsmann; Klaus Köhler; Brian Raynor; Joachim Schneider (IEEE J. Solid State Circuits, 1994)

Mixed signal integrated circuits based on GaAs HEMTs. - Andreas Thiede; Zhi-Gong Wang; Michael Schlechtweg; Manfred Lang; Petra Leber; Zhihao Lao; Ulrich Nowotny; Volker Hurm; Michaela Rieger-Motzer; Manfred Ludwig; Martin Sedler; Klaus Köhler; et al. (IEEE Trans. Very Large Scale Integr. Syst., 1998)

Geogames in education for sustainable development: Transferring a simulation game in outdoor settings. - Joachim Schneider; Steffen Schaal; Christoph Schlieder (VS-GAMES, 2017)

Integrating simulation tasks into an outdoor location-based game flow. - Joachim Schneider; Steffen Schaal; Christoph Schlieder (Multim. Tools Appl., 2020)