1. Solid-state Electrostatic Control Elements Operating on Piezoelectric Principles;N-Nagy,1969
2. A Novel Electrostatic Actuator in a Direct Feedback System;N-Nagy;Control,1967
3. Piezoelectric Element as Novel Electrostatic Controller in a Closed Loop Servo System;N-Nagy,1967
4. Compensation of Irregularities in Motion of a Recording Medium;N-Nagy,1963
5. Procede et appareil pour compenser less irregularities de mouvment d’un support d’enregistrement;N-Nagy,1962