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2. S. Schubin and S. Wonsowsky, “On the Electron Theory of Metals,” Proc. Roy. Soc. A 145, 159 (1934); S. Schubin and S. Wonsovsky, “Zur Elektronentheorie der Metalle,” Zs. Sow. Phys. 7, 292 (1935); 10, 348 (1936).
3. S. V. Vonsovskii, “On the Exchange Interaction of s and d Electrons in Ferromagnets,” Zh. Eksp. Teor. Fiz. 16, 981 (1946).
4. S. V. Vonsovskii, Magnetism (Nauka, Moscow, 1971; Wiley, New York, 1974).
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