@misc{indiciae10d040b9d3e0,
  title = {Landfill mapping using multi-disciplinary geophysical techniques at the U.S. Air Force Academy, Colorado Springs, CO},
  author = {Robert Horton and John W. Busby and Michael H. Powers and Ronald N. Knoshaug},
  year = {1993},
  url = {https://pubs.usgs.gov/publication/70100271},
  note = {Source identifier: 70100271}
}