@misc{indiciaed0053ffe58dd,
  title = {An auger-sleeve sampler for stony soils},
  author = {G.C. Curtin and H. D. King},
  year = {1972},
  doi = {10.1016/0375-6742(72)90017-9},
  url = {https://pubs.usgs.gov/publication/70009925},
  note = {Source identifier: 70009925}
}