1. Natural gas seepage in the Gulf of Mexico;Bernard;Earth Planet. Sci. Lett.,1976
2. Carbon isotope effects during pyrolytic formation of early methane from carbonaceous materials;Chung,1980
3. Revaluation of carbon-isotope compositions of natural methanes;Frank;Bull. Am. Assoc. Pet. Geol.,1974
4. Correlation of natural gas by use of carbon isotopic distribution between hydrocarbon components;James;Bull. Am. Assoc. Pet. Geol.,1983
5. Microbial alteration of subsurface natural gas accumulations;James;Bull. Am. Assoc. Pet. Geol.,1984