@misc{indiciae410e01cf0594,
  title = {Air-ground interface: Surface waves, surface impedance and acoustic-to-seismic coupling coefficient},
  author = {Daigle, Gilles and Embleton, Tony},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910007372},
  note = {Source identifier: 19910007372}
}