@article{44876,
  author = {Lars Hedin and Lennart Granat and Gene Likens and Henning Rodhe},
  title = {Strong similarities in seasonal concentration ratios of SO42-, NO3- and NH4+ in precipitation between Sweden and the northeastern US*},
  year = {1990},
  journal = {Tellus B},
  volume = {42},
  number = {5},
  pages = {454{\textendash}462},
  url = {http://onlinelibrary.wiley.com/doi/10.1034/j.1600-0889.1990.t01-4-00005.x/abstract},
  language = {eng},
}