@misc{indiciaebd10d2211577,
  title = {Bioassay of estrogenicity and chemical analyses of estrogens in streams across the United States associated with livestock operations},
  author = {David A. Alvarez and Nancy W. Shappell and L.O. Billey and Dietrich S. Bermudez and Vickie S. Wilson and Dana W. Kolpin and Stephanie D. Perkins and Nicola Evans and William T. Foreman and James L. Gray and J.M. Shipitalo and Michael T. Meyer},
  year = {2013},
  doi = {10.1016/j.watres.2013.03.028},
  url = {https://pubs.usgs.gov/publication/70048234},
  note = {Source identifier: 70048234}
}