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2. Weekman, V.W., Jr., Ind. Eng. Chem. Process Design and Devel., 7, 90 (1968).
3. Weekman, V.W., Jr., ibid, 8, 388 (1969).
4. Nace, D.M., S.E. Voltz and V.W. Weekman, Jr., ibid, 10, 530 (1971).
5. Weekman, V.W., Jr., and D.M. Nace, AIChE J1., 16, 397 (1970).