1. Positron Emission Tomography and Autoradiography—Principles and Applications for the Brain and Heart (eds Phelps, M. E., Maziotta, J. C. & Schelbert, H. R.) (Raven, New York, 1986).
2. The Physics of Medical Imaging (ed. Webb, S.) (Adam Hilger, Bristol, 1988).
3. Van den Bergen, E. A., Jonkers, G., Strijckmans, K. & Goethals, P. Int. J. Radial appl. Instrum. E: Nucl. Geophys. 3, 407–418 (1989).
4. Hawkesworth, M. R., Bemrose, C. R., Fowles, P. & O'Dwyer, M. A. in Tomography and Scatter Imaging IOP Short Meetings Series 19 (eds MacCuaig, N. & Holt, R.) 67–79 (Institute of Physics, Bristol, 1989).
5. Knoll, G. F. Radiation Detection and Measurement (Wiley, New York, 1989).