@misc{indiciaeabe95f14fb05,
  title = {Helicopter electromagnetic and magnetic geophysical survey data, Swedeburg and Sprague study areas, eastern Nebraska, May 2009},
  author = {B. D. Smith and J.D. Abraham and J. C. Cannia and B. J. Minsley and L.B. Ball and G. V. Steele and M. Deszcz-Pan},
  year = {2011},
  doi = {10.3133/ofr20101288},
  url = {https://pubs.usgs.gov/publication/ofr20101288},
  note = {Source identifier: ofr20101288}
}