TY - RPRT TI - Methane and nitrous oxide temporal and spatial variability in two midwestern USA streams containing high nitrate concentrations AU - Richard L. Smith AU - J.K. Bohlke PY - 2019 DO - 10.1016/j.scitotenv.2019.05.374 UR - https://pubs.usgs.gov/publication/70203762 ID - 70203762 ER -