@misc{indiciae26bb1e043727,
  title = {Effects of nitrogen deposition and empirical nitrogen critical loads for ecoregions of the United States},
  author = {L.H. Pardo and M.E. Fenn and C.L. Goodale and L.H. Geiser and C. T. Driscoll and E.B. Allen and Jill Baron and R. Bobbink and W.D. Bowman and C.M. Clark and B. Emmett and F.S. Gilliam and T.L. Greaver and S.J. Hall and E.A. Lilleskov and L. Liu and J.A. Lynch and K.J. Nadelhoffer and S.S. Perakis and M. J. Robin-Abbott and J.L. Stoddard and K.C. Weathers and R.L. Dennis},
  year = {2011},
  doi = {10.1890/10-2341.1},
  url = {https://pubs.usgs.gov/publication/70032699},
  note = {Source identifier: 70032699}
}