1. Manfred Boos, Wolf-Ekkehard Krieg: Stufenloses Automatikgetriebe Ecotronic von ZF, ATZ Automobiltechnische Zeitschrift 96 (1994).
2. Bertrand Daieff, Josef Kern, Helmut Krenn, Heinrich Petra: CVT für Heckantrieb, ATZ Automobiltechnische Zeitschrift 96 (1994).
3. Philipp Dietrich, Hans-Ulrich Hörler, Meinrad K. Eberle: The ETH-Hybrid III Car — A Concept to minimize consumption and to reduce emissions, 26th IS ATA Conference, Aachen 1993.
4. Esfandiar Shafai, Andreas Schmid, Hans P. Geering: Torque Pedal for a Car with Continuously Variable Transmission, SAE Paper 941010, 1994.
5. Lino Guzzella and Andreas Schmid: Control of Si-Engines with CVT's — A Feedback Linearization Approach, 3th IEEE CCA, 1994.