Guttler B, Salje E, Freeman P, Blunt J, Harris M, Duffield T, Ager C, Hughes H1 January 1991Journal article Journal:Superconductor Science and TechnologyVolume:4Issue:1S, IOP Publishing, p.s70No abstract availableKeywords:51 Physical Sciences , 5104 Condensed Matter Physics DOI10.1088/0953-2048/4/1s/009