@misc{indiciaea4915d050b9b, title = {Evidence of active dune sand on the Great Plains in the 19th century from accounts of early explorers}, author = {D.R. Muhs and V.T. Holliday}, year = {2017}, doi = {10.1006/qres.1995.1020}, url = {https://pubs.usgs.gov/publication/70018814}, note = {Source identifier: 70018814} }