@misc{indiciae7c1807b22c9a,
  title = {Porosity evolution of upper Miocene reefs, Almeria Province, southern Spain},
  author = {A. K. Armstrong and P. D. Snavely and W.O. Addicott},
  year = {1980},
  doi = {10.1306/2f918950-16ce-11d7-8645000102c1865d},
  url = {https://pubs.usgs.gov/publication/70042511},
  note = {Source identifier: 70042511}
}