@misc{indiciae95727dd1157d,
  title = {Constraints on the age of the Great Sand Dunes, Colorado, from subsurface stratigraphy and OSL dates},
  author = {Richard F. Madole and Shannon Mahan and Joseph H. Romig and Jeremy C. Havens},
  year = {2017},
  doi = {10.1016/j.yqres.2013.09.009},
  url = {https://pubs.usgs.gov/publication/70118580},
  note = {Source identifier: 70118580}
}