@misc{indiciae7fa700d1acaa,
  title = {First-order analysis of deformation of a thrust sheet moving over a ramp},
  author = {Philip Berger and Arvid M. Johnson},
  year = {1980},
  doi = {10.1016/0040-1951(80)90276-0},
  url = {https://pubs.usgs.gov/publication/70012110},
  note = {Source identifier: 70012110}
}