@misc{indiciae90f4fe180642,
  title = {Reproduction of an exotic riparian tree willow, Salix fragilis (L.), in Colorado},
  author = {P.B. Shafroth and M. L. Scott and Jonathan M. Friedman and R. D. Laven},
  year = {1993},
  url = {https://pubs.usgs.gov/publication/70175359},
  note = {Source identifier: 70175359}
}