@misc{indiciae727eef929527,
  title = {Assessment of hydrocarbon source rock potential of Polish bituminous coals and carbonaceous shales},
  author = {M.J. Kotarba and J.L. Clayton and D. D. Rice and M. Wagner},
  year = {2002},
  doi = {10.1016/s0009-2541(01)00350-3},
  url = {https://pubs.usgs.gov/publication/70024664},
  note = {Source identifier: 70024664}
}