1. (1) Baba, M., Shimizu, Y., Kenny, R., Maenaka, K. and Maeda, M., A Study of a Three-Dimensional Positional Sensing System based on an Analogue Neural Network with Three Inputs, Technical Digest of the 14th Sensor Symposium, (1996), pp.289-292.
2. SQUIDs for nondestructive evaluation
3. High-Resolution Monitoring of the Gastrointestinal Transit of a Magnetically Marked Capsule
4. (4) Haynor, D.R., Somogyi, Ch.P. and Golden, R.N., System and Method to Determine the Location and Orientation of an Indwelling Medical Device, Patent US 5879297, 1999.
5. (5) Dumoulin, Ch.L., Darrow, R.D., Schenk, J.F. and Souza, S.P., Tracking System to Follow the Position and Orientation of a Device with Radiofrequency Field Gradients, Patent US 5211165, 1993.