1. D. Wüllner, H. Müller, O. Lüdtke, H. Dobrinski, T. Eggers, Multi-function Microsensor for Oil Condition Monitoring Systems, AMAA 2003 Yearbook
2. I. Van Dommelen, Plastic Packaging for Various Sensor Applications in the Automotive Industry, AMAA 2002 Yearbook, pp 289–296
3. L. F. Matsiev, J. W. Bennett, E. W. McFarland, Application of Low Frequency Mechanical Resonators to Liquid Property Measurements, 1998 IEEE Ultrasonics Symposium; See also patents EP 0943091 B1, US6336353, US6494079 and additional patents pending.
4. B. Jacoby et al., A Multifunctional Oil Condition Sensor, AMAA 2001 Yearbook
5. L.F. Matsiev Application of Flexural Mechanical Resonators to High Throughput Liquid Characterization. Proceedings of 2000 IEEE Ultrasonics Symposium. v.1, 427–434