1. Devonian shales as a source of gas;Avila,1976
2. The flora of the Catskill clastic wedge;Banks,1985
3. The Paleoecology of the Upper Devonian-Lower Mississippian Black Shale Sequences in Eastern Kentucky;Barron,1982
4. New Albany Shale Group (Devonian-Mississippian) source rocks and hydrocarbon generation in the Illinois Basin;Barrows,1984
5. Variations in the properties of vitrinite in isometamorphic coal;Brown;Fuel,1964