@misc{indiciae5373832b8700, title = {Sand dunes; computer animations and paper models}, author = {T. R. Alpha and J. P. Galloway and S. W. Starratt}, year = {1998}, doi = {10.3133/ofr98131b}, url = {https://pubs.usgs.gov/publication/ofr98131B}, note = {Source identifier: ofr98131B} }