1. Albert, S., R. M. Johnson, and M. S. Cohan: Phosphorus metabolism in resting and pregnancy-stimulated mammary glands and in spontaneous mammary carcinomas of mice. Cancer Res. 11, 772?776 (1951).
2. Baserga, R.: A study of nucleic acid synthesis in ascites tumor cells by two emulsion radioautography. J. Cell Biol. 12, 633?637 (1962).
3. ?: Mitotic cycle of ascites tumor cells. Arch. Path. 75, 156?161 (1963).
4. ?, and W. E. Kisieleski: Comparative studies of the kinetics of cellular proliferation of normal and tumorous tissues with the use of tritiated thymidine. I. Dilution of the label and migration of labeled cells. J. nat. Cancer Inst. 28, 331?339 (1962).
5. ?, and W. E. Kisieleski: Re-utilization of labeled DNA by Ehrlich ascites tumor cells. Arch. ital. Pat. Clin. Tumori 6, 3?13 (1963).