@misc{indiciae5a8855853e36,
  title = {Determining quantity and quality of retained oil in mature marly chalk and marlstone of the Cretaceous Niobrara Formation by low-temperature hydrous pyrolysis},
  author = {Michael Lewan and Mark D. Sonnenfeld},
  year = {2017},
  url = {https://pubs.usgs.gov/publication/70192991},
  note = {Source identifier: 70192991}
}