1. Yu. I. Petrov, Small-Particle Physics [in Russian], Nauka, Moscow (1983).
2. A. M. Diepen, H. I. Vledder, and C. Langereis, ?The nature of the passivating oxide layer on iron powder,? Appl. Phys.,15, No. 2, 163?166 (1978).
3. M. Nagayana and M. Cohen, ?The anodic oxidation of iron in a neutral solution,? J. Electrochem. Soc.,109, No. 9, 781?790 (1962).
4. V. D. Parkhomenko, A. T. Kolodyazhnyi, and Yu. D. Galivets, ?Producing iron, cobalt, and nickel powders in high specific-energy equipment,? in: Abstracts for the All-Union Conference on the Use of Powder-Technology Equipment, Tomsk, 27?29 May 1987 [in Russian], Tomsk State Univ., Tomsk (1987), p. 256.
5. I. P. Suzdalev and A. P. Amulyavichus, ?Mössbauer spectroscopy applied to the magnetic parameters of thin oxide films,? Zh. Éksp. Teor. Fiz.,63, No. 5, 1759?1761 (1972).