1. Asphalts and Allied Substances;Abraham,1945
2. Hydrocarbon generation in lacustrine rocks of Tertiary age, Uinta Basin, Utah—organic carbon, pyrolysis yield, and light hydrocarbons;Anders,1984
3. The nature and origin of harbolite and a related asphaltite from southeastern Turkey;Bartle;Chem. Geol.,1981
4. Kerogen characterisation by 13C NMR spectroscopy and pyrolysis-mass spectrometry;Barwise,1984
5. Native bitumens associated with oil shales;Bell,1963