1. Vitrinite reflectance geothermometry in the Cerro Prieto geothermal system, Baja California, Mexico: Riverside;Barker;University of California, Institute of Geophysics and Planetary Physics, Report 79/10,1979
2. Vitrinite reflectance geothermometry and apparent heating duration in the Cerro Prieto geothermal field;Barker;Geothermics,1981
3. Vitrinite reflectance as an exploration tool in defining areas of recent and ancient heating: a case study of the Cerro Prieto geothermal system, Mexico;Barker,1990
4. Statistical Concepts and Methods;Bhattacharyya,1977
5. Estimating the mean permeability: how many measurements do you need?;Corbett;First Break,1991