@misc{indiciaeaf51184fe9e4, title = {Corn leaf nitrate reductase - A nontoxic alternative to cadmium for photometric nitrate determinations in water samples by air-segmented continuous-flow analysis}, author = {C.J. Patton and A.E. Fischer and W.H. Campbell and E.R. Campbell}, year = {2002}, doi = {10.1021/es011132a}, url = {https://pubs.usgs.gov/publication/70025095}, note = {Source identifier: 70025095} }