@misc{indiciaebf0ee76230ca,
  title = {Mapping crustal heterogeneity using Lg propagation efficiency throughout the Middle East, Mediterranean, Southern Europe and Northern Africa},
  author = {D.E. McNamara and W.R. Walter},
  year = {2001},
  url = {https://pubs.usgs.gov/publication/70023656},
  note = {Source identifier: 70023656}
}