1. Harmonic production in ferromagnetic material at low frequencies and low flux densities;Peterson;Bell System Technical Journal,1928
2. Magnetic circuits and transformers;Dept of Electrical Engineering, Massachusetts Institute of Technology,1943
3. Physical theory of ferromagnetic domains;Kittel;Rev Mod Phys,1949
4. Ferromagnetism;Bozorth,1951
5. The effect of stress on the magnetization of mild steel at moderate field strengths;Langman;IEEE Trans Mag,1985