1. Abderhalden, E.: Handbuch der biologischen Arbeitsmethoden. Allgemeine analytische Methoden. Abt. I, Teil 3. Berlin: Urban u. Schwarzenberg 1920.
2. Abers, E. L.: An Inexpensive Filter-Cup for Collecting and Counting Active Precipitates. Nucleonics 3, Nr. 4, 43 (1948).
3. Armstrong, W. D., and J. Schubert: Determination of Radioactive Carbon in Solid Samples. Analytical Chem. 20, 270 (1948).
4. Calvin, M., C. Heidelberger, J. C. Reid, B. M. Tolbert and P. F. Yankwich: Isotopic Carbon. Techniques in its Measurement and Chemical Manipulation. New York: John Wiley 1949.
5. Chaikoff, I. L., and D. B. Zilversmit: Radioactive Phosphorus. Its Application to the Study of Phospholipid Metabolism; siehe 26, S. 321.