1. Anshukova, N.V., Boguslavski, Yu.V., Golovaskin, A.I., et al., J. Superconduct., 1994, vol. 7, no. 2, p. 427.
2. Anshukova, N.V., Golovashkin, A.I., Ivanova, L.I., et al., Pis’ma Zh. Eksp. Teor. Fiz., 2000, vol. 71, p. 550 [JETP Lett. (Engl. Transl.), 2000, vol. 71, no. 9, p. 377].
3. Anshukova, N.V., Golovashkin, A.I., Ivanova, L.I., et al., Zh. Eksp. Teor. Fiz., 2006, vol. 129, p. 1043 [JETP (Engl. Transl.), 2006, vol. 102, no. 6, p. 920].
4. Golovashkin, A.I. and Rusakov, A.P., Fiz. Tverd. Tela, 2007, vol. 49, p. 1363 [Solid State Phys. (Engl. Transl.), 2007, vol. 49, no. 8, p. 1429].
5. Kopaev, Yu.V., Golovashkin, A.I., Anshukova, N.V., Ivanova, et al., 5th Int. Conf. on New Theories, Discoveries and Applications of Superconductors and Related Materials (New3 SC-5), Beijing, 2004, p. 56.