JOURNAL OF MATERIALS CHEMISTRY, vol. 4, no. 6, page. 991 - 992, 1994-06
PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS, vol. 49, no. 21, page. 15416, 1994-01
PHYSICA B: PHYSICS OF CONDENSED MATTER, no. PART 2, page. 1633 - 1634, 1994-01
PHYSICA C: SUPERCONDUCTIVITY AND ITS APPLICATIONS, vol. 228, no. 1-2, page. 195 - 198, 1994-01
PHYSICA C: SUPERCONDUCTIVITY AND ITS APPLICATIONS, no. PART 5, page. 3115 - 3116, 1994-01