@misc{indiciaeac00a60586f5,
  title = {Acidic deposition, cation mobilization, and biochemical indicators of stress in healthy red spruce},
  author = {W.C. Shortle and K.T. Smith and R. Minocha and G.B. Lawrence and M.B. David},
  year = {1997},
  doi = {10.2134/jeq1997.00472425002600030038x},
  url = {https://pubs.usgs.gov/publication/70019872},
  note = {Source identifier: 70019872}
}