REFERENCES
- Atkinson, R. & Ellis, S., Ferrography, J. of the Franklin Inst., Vol, 252, No. 5, 1951.
- Arutunov, M. & Patrounov, V., Ferrography—Magnetic High speed Printing (Publishing House, ‘Energija’ Moscow) (in Russian), 1964.
- Lesnichenko, M., Markovich, V. & Patrounov, V., USSR Patent No. 129206.