@misc{indiciae1b53917819e6, title = {Upper Pleistocene and Holocene lakes in the An Nafud, Saudi Arabia}, author = {E. Schulz and J.W. Whitney}, year = {1986}, doi = {10.1007/bf00026660}, url = {https://pubs.usgs.gov/publication/70014505}, note = {Source identifier: 70014505} }