1. J. O'connor, (Dominion Oil Refining Co. Ltd), private communication (1991).
2. J. H. Kim, H. K. Kang andD. S. Herh,Komu Hakhoechi 20 (1985) 115.
3. J. W. Swain, Report No. EPA-IWS-144C, (Environmental Protection Agency, Washington, DC, 1980).
4. A. K. Abdul Halim Mohammed, K. Hankish, A. R. Nagi, N. Abbas andM. Abdul-Hussein Said,J. Pet. Res. 3 (1984) 15.
5. E. J. Dickinson, in Proceedings of 11th ARRB Conference, (Melbourne, Australia, 1982) p. 35.