1. General intelligence and mental speed: Their relationship and development;Brand,1981
2. Intelligence and “inspection time”;Brand,1982
3. Detection of a noise signal of varying duration;Campbell;Journal of the Acoustical Society of America,1963
4. Adaptive threshold procedures: BUDTIF;Campbell;Journal of the Acoustical Society of America,1968
5. What's new in the measurement of intelligence?;Eysenck;Bulletin of the British Psychological Society,1982