@misc{indiciae76b0bf25a1ed,
  title = {Petroleum geology of the Songliao basin, Northeast China},
  author = {K. Y. Lee},
  year = {1986},
  doi = {10.3133/ofr86502},
  url = {https://pubs.usgs.gov/publication/ofr86502},
  note = {Source identifier: ofr86502}
}