1. F. Förster, The Origin of Nondestructive Determination of Characteristic Material Parameters Using Electromagnetic Methods, ed. by P. Höller, V. Hauk, G. Dobmann, C.O. Ruud, R. E. Green. Nondestructive Characterization of Materials (Springer, 1989)
2. Y.K. Fedosenko, V.G. Gerasimov, A.D. Pokrovskiy, Y.Y. Ostanin, Eddy Current Testing, in Nondestructive Testing. ed. by V.V. Klyuev (Publishing House Spektr, Moscow, Russia, 2010), pp.331–632
3. N.W. Ashcroft, N.D. Mermin, Solid State Physics (Saunders College Publishing, Philadelphia, PA, 1976), p.19105
4. C. Kittel, Introduction to Solid State Physics, 8th edn. (Wiley, Hoboken, NJ, 2005)
5. A.J. Walton, Three Phases of Matter (Clarendon Press, Oxford, 1983)