1. The heavy particle hazard—What physical data are needed?;Curtis,1972
2. Frequency of heavy ions in space and their biologically important characteristics;Curtis,1973
3. Radiation doses and LET distributions of cosmic rays;Silberberg;Radiat. Res.,1984
4. Radiation hazards on space missions;Letaw;Nature,1987
5. S.B. Curtis, “Radiation physics related to biology,” in Terrestrial Space Radiation and Its Biological Effects, ed., P.D. McCormack, C.E. Swenberg, and H. Bücker (Plenum, New York, in press)