1. Abelson, J.: 1979,Ann. Rev. Biochem. 48, 1035.
2. Altman, J., Bowman, E. J., Garber, R. L., Kole, R., Koski, R. A., and Stark, B. C.: 1980, in D. Soll, J. N. Abelson and P. R. Schimmel (eds.),Transfer RNA: Biological Aspects, Cold Spring Harbor Laboratory, pp. 71–97.
3. Baer, M. and Altman, S.: 1985,Science 228, 999.
4. Balasingham, K. and Ferdinand, W.: 1970,Biochem. J. 118, 15.
5. Baltimore, D.: 1985,Cell 40, 481.