1. Sutherland, R. M.; Durand, R. E. Radiation response of multicell spheroids: An in vitro tumor model. Curr. Top. Radiat. Res. Quart. 11: 87–139; 1976.
2. Sutherland, R. M. The multicellular spheroid system as a tumor model for studies of radiation sensitizers. Pharmacol. Ther. 8: 105–123; 1980.
3. Durand, R. E.; Olive, P. L. Evaluation of nitroheterocyclic radiosensitizers using spheroids. Lett, J., ed. Advances in Radiation Biology. Vol. 9. New York: Academic Press, 1981: 79–104.
4. Olive, P. L.; Durand, R. E. Uptake and mutagenicity of AF-2 in Chinese hamster V-79 spheroids under aerobic and hypoxic conditions. Environ. Mutagen. 3: 659–670; 1981.
5. Durand, R. E. Isolation of cell populations from in vitro tumor models according to sedimentation velocity. Cancer Res. 35: 1295–1300; 1975.