Herman Vermaak and Johan Niemann, "Virtual Commissioning: A Tool to Ensure Effective System Integration"
Jan Kredba and Miroslav Holada, "Precision ultrasonic range sensor using one piezoelectric transducer with impedance matching and digital signal processing"
Riccardo Colombo and Mikael Bianchi, "Sensor-less Estimation of Frictions and Moment of Inertia of a Stepper Motor in a Machining Device"
