1. Bendat, J. S. and Piersol, A. G. (1966),Measurement and Analysis of Random Data, Wiley, New York,66.
2. de Boor, C. (1978),A Practical Guide to Splines, Springer–Verlag, Applied Mathematical Sciences Series27.
3. Chant, I. J. (1987),Magnetotelluric Synoptic System, Unpub. MSc. Thesis, University of Queensland.
4. Dekker, D. L. (1983),A Magnetotelluric Survey of the Bowen Basin, PhD. Thesis, University of Queensland.
5. Keller, G. V. (1966) — ‘Electrical Properties of Rocks and Minerals’,in: Handbook of Physical Constants, Section 26 Geological Society of America Inc., Memoir97.