Perry, Wayne (1) Harnisch, Falk, Sleutels, Tom, Ter Heijne, Annemiek (1) Lisle, Richard J. (cardiff University), Brabham, Peter (cardiff University), Barnes, John W. (university College Of Swansea (1) Bevelacqua, Joseph John (bevelacqua Resources (1) Johnson, David O (the Univ Of Kansas (1)