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3. Bowles, K. W. and Warren, T. E. “Hydrogenation of Alberta bitumen”; Fuels Division Report FRL 96; 1948.
4. Booth, F. L., Carson, R. E. and Bowles, K. W. “Low pressure hydrogenation of coker distillate from Athabasca bitumen”; Mines Branch Research Report R-30; 1958.
5. Hydrogenation of a coker distillate derived from Athabasca bitumen;Aitken;Can. J. Chem. Eng.,1961