C. Uher, L. Yongqian, J.F. Whitaker, J. Supercond.7 (1994) 323–9.
P.B. Allen, X. Du, L. Mihaly, L. Forro, Phys. Rev. B40 (1994) 9073–79.
M. Ikebe, H. Fujishiro, T. Naito, K. Noto, J. Phys. Soc. Jpn. 63 (1994) 3107–3114.
O. Jeandupeux, A. Schilling, S. Buchi, J.D. Guo, H.R. Ott, Physica C235 (1994) 1745–46.
R. Calemczuk, C. Marcenat, J.L. Tholence, M.F. Gorius, J.J. Capponi, Physica C235 (1994) 1743–44.
M. Hirabayashi, K. Tokiwa, H. Ozawa, Y. Noguchi, M. Tokumoto, H. Ihara, Physica C219 (1994) 6–8.
H. Ihara, M. Hirabayashi, H. Tanino, K. Tokiwa, H. Ozawa, Y. Akahama, H. Kawamura, Jpn. J. Appl. Phys. 32 (1993) L1732–4.
H. Kato, K. Nara and M. Okaji, Proceedings of 4th ATPC (Tokyo, 1995) vol. 2, 271–274.
L. Tewoldt and T. Wölkhousen Solid State Commun. 70 (1989) 839–844.
M. Moussa and M. Ausloos, Phys. Rev. B51 (1994) 9372–74.
R.A. Richardson, S.D. Peacor, Franco Nori and C. Uher, Phys. Rev. Lett. 67 (1991) 3856–59.
