1. Studies on high current density thermionic cathodes;Ahmed,1962
2. Thermionic emission from dispenser cathodes;Ahmed;Journal of Applied Physics,1963
3. An improved electron multiplier particle counter;Allen;Review of Scientific Instruments,1947
4. Electron microscopy of etched germanium surfaces;Allen;Journal of Electronics,1956
5. The scanning electron microscope—a new tool in fibre technology;Atack;Pulp and Paper Magazine of Canada,1956