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3. W. Junge, in “Methods of Enzymatic Analysis,” 3rd Ed., Vol. 4, ed. by H. U. Bergmeyer, VCH, Weinheim, 1984, pp. 2–7.
4. J. Sambrook, E. F. Fritsch, and T. Maniatis, in “Molecular Cloning: A Laboratory Manual,” 2nd Ed., Vol. 2, Cold Spring Harbor Laboratory Press, New York, 1989.