@misc{indiciaee229ce907beb,
  title = {Modern biogenic gas-generated craters (sea-floor “pockmarks”) on the Bering Shelf, Alaska},
  author = {Nelson C. Hans and D.R. Thor and Mark W. Sandstrom and Keith A. Kvenvolden},
  year = {1979},
  doi = {10.1130/0016-7606(1979)90<1144:mbgcsp>2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70208415},
  note = {Source identifier: 70208415}
}