1. Schnös, M., and Inman, R. B., J. molec. Biol., 51, 61–73 (1970).
2. Stevens, W. F., Adhya, S., and Szybalski, W., in The Bacteriophage Lambda (edit. by Hershey, A. D.), 515–533 (Cold Spring Harbor Laboratory, New York, 1971).
3. Dove, W. F., Inokuchi, H., and Stevens, W. F., in The Bacteriophage Lambda (edit. by Hershey, A. D.), 747–771 (Cold Spring Harbor Laboratory, New York, 1971).
4. Rambach, A., Virology, 54, 270–277 (1973).
5. Eisen, H., et al., Virology, 30, 224–241 (1966).