1. Ackerman, G. A.: Histochemistry of normal and leukemic lymphocytes. J. Histochem. Cytochem.7, 318?319 (1959);
2. Histochemical demonstration of indoxyl acetate esterase activity in normal human blood and bone Marrow. Lab. Invest.9, 298?304 (1960).
3. Ammon, R.: Die Esterasen. InAmmon u.Dirscherl, Fermente, Hormone, Vitamine. Bd. I: Fermente, S. 99. Stuttgart: Georg Thieme 1959.
4. Baker, J. R.: The structure and chemical composition of the Golgi element. Quart. J. micr. Sci.85, 1?71 (1945).
5. Barrnett, R. J., andA. M. Seligman: Histochemical demonstration of esterases by production of indigo. Science114, 579 (1951).