1. Manner, G., Broda, E., and Kellner, G., Monatsh. Chem., 88, 896 (1957).
2. Broda, E., Suschny, O., and Kellner, G., Conference on the Peaceful Uses of Atomic Energy, Geneva, 1958, Report No. 1438.
3. Broda, E., and Rohringer, G., Z. Elektrochem., 58, 634 (1954).
4. Broda, E., J. Inorg. Nucl. Chem., 1, 412 (1955).
5. Dulbecco, R., and Vogt, M., J. Exp. Med., 99, 167 (1954).