1. Silver, S., 1977, in Microorganisms and Minerals (Weinberg, E. D., ed.) pp. 49–103. Marcel Dekker, New York.
2. Silver, S., 1978, in Bacterial Transport (Rosen, B. P., ed.) pp. 221–324, Marcel Dekker, New York.
3. Crosby, W. H., Greene, R. A. and Slepecky, R. A., 1971, in Spore Research (Barker, A. M., Gould, G. W. and Wolf, J., eds.) pp. 143–160, Academic Press, New York.
4. Vinter, V., 1969, in The Bacterial Spore (Gould, G. W. and Hurst, A., eds.) pp. 73–123, Academic Press, New York.
5. Stahl, S. and Ljunger, C., 1976, FEBS Lett. 63, 184–187.