Beaulieu JK, Tank JL, Hamilton SK, et al. Nitrous oxide emission from denitrification in stream and river networks. Proceedings of the National Academy of Sciences of the United States of America. 2011;108:214 -219. doi:10.1073/pnas.1011464108.

Helton AM, Poole GC, Meyer JL, et al. Thinking outside the channel: modeling nitrogen cycling in networked river ecosystems. Frontiers in Ecology and the Environment. 2011;9:229 -238. doi:10.1890/080211.

Bernot MJ, Sobota DJ, Hall RO, et al. Inter-regional comparison of land-use effects on stream metabolism. Freshwater Biology. 2010;55:1874 -1890. doi:10.1111/j.1365-2427.2010.02422.x.

Hall, Jr. RO, Tank JL, Sobota DJ, et al. Nitrate removal in stream ecosystems measured by 15N addition experiments: Total uptake. Limnology and Oceanography. 2009;54:653 -665. doi:10.4319/lo.2009.54.3.0653.

Mulholland PJ, Hall RO, Sobota DJ, et al. Nitrate removal in stream ecosystems measured by 15N addition experiments: Denitrification. Limnology and Oceanography. 2009;54:666 -680. doi:10.4319/lo.2009.54.3.0666.

Mulholland PJ, Helton AM, Poole GC, et al. Stream denitrification across biomes and its response to anthropogenic nitrate loading. Nature. 2008;452:202 -207. doi:10.1038/nature06686.