1. 'Modern power station practice', 2nd edn, Vol. 5, 349; 1971, Oxford, Pergamon.
2. J. BROWN, D. G. KINGERLEY, and M. J. LONGSTER: Proc. 'Eurocor '77',335; 1977, London, Society of Chemical Industry.
3. N. B. MILLER: Proc. 'Corrosion '79', paper1; 1979, Houston, TX, NACE.