1. Rates of microbial metabolism in deep coastal plain aquifers;Chapelle;App. Environ. Micro.,1990
2. Chilton, P.J., Stuart, M.E., Goody, D.C., Williams, R.J., Williamson, A.R., 1995. The occurrence of herbicides in and the modelling of their transport to the chalk aquifer beneath arable land in southern England. British Crop Protection Monograph No. 62. Pesticide movement to water, pp. 111–116.
3. Clark, L., Gomme, J., Oakes, D.B., Slade, S., Fielding, M., Moore, K., Taylor, L., Shurvel, S., 1992. Pesticides in major aquifers. National Rivers Authority R&D Note 72.
4. Mechanisms of groundwater pollution by pesticides;Foster;J.I.W.E.M.,1991
5. Lithotrophic and heterotrophic bacteria in deep subsurface sediments and their relation to sediment properties;Fredrickson;Geomicrobiol. J.,1989