@misc{indiciaeaad7e7fa5715, title = {Evidence that elevated CO2 levels can indirectly increase rhizosphere denitrifier activity}, author = {Smart, D. R. and Ritchie, K. and Stark, J. M. and Bugbee, B.}, year = {1997}, url = {https://ntrs.nasa.gov/citations/20040112197}, note = {Source identifier: 20040112197} }