1. 1) Munakata-Marr, J., Matheson, V. G., Forney, L. J., Tiedje, J. M. and McCarty, P. L. : Long-term biodegradation of trichloroethylene influenced by bioaugmentation and dissolved oxygen in aquifer microcosms, Vol. 31, Environ. Sci. Technol., pp. 786-791, 1999.
2. 2) Steffan, R. J., Sperry, K. L., Walsh, M. T., Vainberg, S. and Condee, C. W. : Field-scale evaluation of in situ bioaugmentation for remediation of chlorinated solvents in groundwater, Environ. Sci. Technol., Vol. 33, pp. 2771-2781, 1999.
3. 3) Winkler, J., Timmis, K. N. and Snyder, R. A. : Tracking the response of Burkholderia cepacia G4 5223-PR1 in aquifer microcosms, Appl. Environ. Microbiol., Vol. 61, pp. 448-455, 1995.
4. 4) Nakamura, K. and Suto, M. : Analysis of bacterivorous protozoa in the natural environment, Journal of JSCE, Ser. G, Vol. 68 (7), pp. III_31-III_40, 2012 (in Japanese).
5. 5) Nakamura, K., Ishida, H. and Iizumi, T. : Evaluating impacts of Ralstonia eutropha KT-1 injected into a trichloroethylene-contaminated site on indigenous bacterial populations in groundwater, Environ. Eng. Res., Vol. 39, pp. 333-344, 2002 (in Japanese).