@misc{indiciae338e2c946855,
  title = {Theory for errors, resolution, and separation of unknown variables in inverse problems, with application to the mantle and the crust in Southern Africa and Scandinavia.},
  author = {Der, Z. A. and Landisman, M.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730043819},
  note = {Source identifier: 19730043819}
}