@article{SchwientekSelle2016,
  author    = {Marc Schwientek and Benny Selle},
  title     = {Quantifying in-stream retention of nitrate at catchment scales using a practical mass balance approach},
  journal   = {Environmental monitoring and assessment : an international journal devoted to progress in the use of monitoring data in assessing environmental risks to man and the environment},
  volume    = {188},
  pages     = {373 -- 386},
  doi       = {10.1007/s10661-016-5097-6},
  year      = {2016},
}