1. Tobias, C. A., Roberts, J. E., Lawrence, J. H., Low-Beer, B. V. A., Anger, H. O., Born, J. L., McCombs, R., and Huggins, C., “Peaceful Uses of Atomic Energy”, Proc. Internat. Conf. Geneva, 10, 95 (1955).
2. Andersson, A., Garcia, J., Henry, J., Riggs, C., Roberts, J. E., Thorell, B., and Tobias, C. A., Radiation Res., 7, 299 (1957).
3. Malis, L. I., Loevinger, R., Kruger, L., and Rose, J. E., Science, 126, 302 (1957).
4. Leksell, L., Acta Chir. Scand., 102, 316 (1951).
5. Leksell, L., Herner, T., and Lidén, K., Kgl. fysiogr. Sällsk. Lund Förh., 25, 142 (1955).