@misc{indiciae97cead632120,
  title = {Origin and migration of hydrocarbon gases and carbon dioxide, Bekes Basin, southeastern Hungary},
  author = {J.L. Clayton and C. W. Spencer and I. Koncz and A. Szalay},
  year = {1990},
  doi = {10.1016/0146-6380(90)90002-h},
  url = {https://pubs.usgs.gov/publication/70016432},
  note = {Source identifier: 70016432}
}