@misc{indiciae84d558aae09e,
  title = {How relevant is opportunistic Bd sampling: Are we ready for the big picture?},
  author = {Erin Muths and Britt Spurre Pedersen and Finn Spurre Pedersen},
  year = {2009},
  url = {https://pubs.usgs.gov/publication/70041324},
  note = {Source identifier: 70041324}
}