1. Alkanes from pyrolytic degradation of bituminous vitrinites and sporonites;Allan,1972
2. Studies on the organic constituents of lacustrine Eocene sediments;Arpino,1972
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4. Programmed temperature pyrolysis of vitrinites of various rank;Barker;Fuel,1974
5. Evidence of life processes in a sediment two and one half billion years old;Belsky;Nature (London),1965