@misc{indiciae5c23acee9056, title = {Controlled photomosaic and revised shaded relief map of the Elysium Quadrangle of Mars}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1988}, doi = {10.3133/i2008}, url = {https://pubs.usgs.gov/publication/i2008}, note = {Source identifier: i2008} }