@misc{indiciaef516146cc429,
  title = {Matrix-controlled hydraulic properties of Mississippian and Pennsylvanian sandstones from the Michigan Basin},
  author = {David B. Westjohn and H. W. Olsen and A.T. Willden},
  year = {1990},
  doi = {10.3133/ofr90104},
  url = {https://pubs.usgs.gov/publication/ofr90104},
  note = {Source identifier: ofr90104}
}