1. Fluxgate-Sensoren: Funktionsweise, Bauformen, Werkstoffe;Hauser;Tech. Messen,1994
2. Supraleitung;Buckel,1990
3. Race-track fluxgate sensors;Ripka;Sensors and Actuators A,1993
4. Measurements made by the author for BASF, Ludwigshafen; the changes in magnetic induction are below 200 nT (internal report).
5. A novel highly sensitive magnetic sensor;Barjenbruch;Sensors and Actuators A,1993