1. Biological marker distributions of oils from the Beaufort Mackenzie Basin (Canada);Brooks;Bull. Can. Pet. Geol.,1985
2. Oil-source rock correlations from the Beaufort Mackenzie Basin (Canada);Brooks;Bull. Can. Pet. Geol.,1985
3. Preliminary organic geochemical studies of samples from the Niger Delta;Ekweozor;Chem. Geol.,1979
4. Variation and significance of C27 and C28 triterpane content of a North Sea core and various North Sea crude oils;Grantham,1980
5. The triterpanes;Kulshreshtha;Phytochemistry,1972