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2. V. Levich Physiochemical Hydrodynamics (Prentice-Hall, Inc. Englewood Cliffs. N.J., 1962), 59
3. W. Strauss Industrial Gas Cleaning, Vol. 8, 2nd ed. (Pergamon Press), 280
4. W. Strauss Industrial Gas Cleaning, Vol. 8. 2nd ed. (Pergamon Press), 284