1. Ait-Langomazino, N., Sellier, R., Jouquet, G., and Trescinski, M., Microbial degradation of bitumen. Experientia47 (1991) 533–539.
2. Anderson, I. C., and Levine, J. S., Relative rates of nitric oxide and nitrous oxide production by nitrifiers, denitrifiers and nitrate respirers. Appl. envir. Microbiol.51 (1986) 938–945.
3. Arter, H., Hanselmann, K. W., and Bachofen, R., Modeling of microbial degradation processes. Experientia47 (1991) 578–583.
4. Atlas, R. M., and Bartha, R., Microbial Ecology, Fundamentals and Applications, 2nd edn. Benjamin Publishing Co., Menlo Park 1987.
5. Barnhart, B. J., Campbell, E. W., Martinez, E., Caldwell, D. E., and Hallett, R., Potential microbial impact on transuranic wastes under conditions expected in the waste isolation pilot plant (WIPP). LA-7918-PR, Albuquerque 1979.