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2. Boyer, P. D., H. Lardy, and K. Myrback (Hrsg): The Enzymes. New York: Academic Press. Band 1: 1959, Band 3: 1960.
3. Davies, W. L.: The Chemistry of Milk London: Chapman and Hall 1936.
4. Dixon, M., and E. C. Webb: Enzymes. London: Longmans 1958.
5. Elmer, A. W.: Iodine Metabolism and Thyroid Function. London: Oxford University Press 1938.