1. Estimation of productivity of Lobo 6 Sand (Lower Wilcox, TX) by identifying diagenetic clays using well log data;Berilgen,1985
2. Lon-derived evaluation of gas-bearing cherokee, Red Fork, and Marrow Formations, Custer Country, Oklahoma;Busch,1985
3. Gamma ray spectral data assists in complex formation evaluation;Fertl;The Log Analyst,1979
4. Use of natural gamma ray spectral logging in evaluation of clay minerals;Fertl;Energy Sources,1982
5. Evaluation of shay clastic reservoir rocks;Fertl;J. Pet. Technol.,1980