1. Sandell, E. B., Colorimetric Determination of Traces of Metals (Interscience, New York, 1959).
2. Kimura, K., and Ishimori, T., Second Intern. Conf. Peaceful Uses of Atomic Energy, 28, 151 (1958).
3. Chipman, W. A., Abst. Prog. Rep., List Pub., etc., U.S. Fish and Wildlife Service Radioisotope Lab., Beaufort, N. C. (1956);
4. Prog. Rep. U.S. Fish and Wildlife Service, Fishery Radiobiol. Lab., Beaufort, N.C. (1956).
5. Seeger, P. A., Nuclear Phys., 25, 1 (1961).