@misc{indiciae176ee1088efa,
  title = {Ice-walled-lake plains: Implications for the origin of hummocky glacial topography in middle North America},
  author = {L. Clayton and J.W. Attig and N.R. Ham and M.D. Johnson and C.E. Jennings and K.M. Syverson},
  year = {2008},
  doi = {10.1016/j.geomorph.2007.02.045},
  url = {https://pubs.usgs.gov/publication/70032042},
  note = {Source identifier: 70032042}
}