1. Dray, S., and Young, G. O. (1958). Differences in the antigenic components of sera of individual rabbits as shown by induced isoprecipitins. J. Immunol. 81 142.
2. Dray, S., Kelus, A., Dubiski, S., Lennox, E. S., and Oudin, J. (1962). A notation for allotypy. Nature 195 785.
3. Lieberman, R., and Dray, S. (1964). Five allelic genes at the Asa locus which control gamma globulin allotypic specificities in mice. J. Immunol. 93 584.
4. Oudin, J. (1956). The ?allotypy? of certain protein antigens of serum. Compt. Rend. Acad. Sci. (Paris) 242 2606.
5. Rapacz, J., Korda, N., and Stone, W. H. (1968). Serum antigens of cattle. I. Immunogenetics of a macroglobulin allotype. Genetics 58 387.