| TWOPIT: A different approach to calibration of gamma ray logging equipment | | | | 1970 |
| Outcrop gamma ray logging to improve understanding of subsurface well log correlations | | | | 1992 |
| API calibration facility for nuclear logs | | | | 1959 |
| The application of borehole geophysics to the selection and monitoring of nuclear waste disposal sites | | | | 1976 |
| Keys, W.S, 1990. Borehole geophysics applied to water-resoutces investigations. U.S. Department of the Interior. Techniques of Water-resources Investigations of the United States Geological Survey, Book 2, Chapter E1. | | | | |