1. D. M. Ginsberg, Physical Properties of High-Temperature Superconductors, Ed. by D. M. Ginsberg (World Scientific, Singapore, 1989; Mir, Moscow, 1990).
2. E. Altshuler, S. Garcia, and J. Barrosso, Physica C 177, 61 (1991).
3. V. M. Arzhavitin, N. N. Efimova, M. B. Ustimenkova, and V. A. Finkel’, Fiz. Tverd. Tela (St. Petersburg) 42, 1361 (2000) [Phys. Solid State 42, 1398 (2000)].
4. E. Dul’kin, V. Beilin, E. Yashchin, et al., Supercond. Sci. Technol. 15, 1081 (2002).
5. E. Dul’kin and M. Roth, Supercond. Sci. Technol. 16, 361 (2003).