D.R.M. Brew, F.C. de Beer, M.J. Radebe, R. Nshimirimana, P.J. McGlinn, L.P. Aldridge and T.E. Payne
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detector 605 ( 1 ): 163 - 166 , 2009