@misc{indiciaeb0cd711daec5,
  title = {N-15/N-14 variations in Cretaceous Atlantic sedimentary sequences - Implication for past changes in marine nitrogen biogeochemistry},
  author = {Rau, Greg H. and Arthur, Michael A. and Dean, Walter E.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870054250},
  note = {Source identifier: 19870054250}
}