by Chapman, R K, Pearce, J E, Burch, S F, Fradkin, L, Toft, M W
Published in Insight (Northampton) (01.02.2007)

by McNab, D., McNab, A., Robinson, R., Toft, Michael W., McDonald, J.
Published in NDT & E international : independent nondestructive testing and evaluation (01.03.2005)

by TOFT, M. W, ARMITAGE, J. G. M
Published in Journal of low temperature physics (01.08.1983)

by Chapman, R K, Pearce, J E, Burch, S F, Fradkin, L, Toft, M W
Published in E-journal of Nondestructive Testing (01.07.2007)