@misc{indiciae4ac367200a51, title = {Geologic history of the polar regions of Mars based on Mars Global survey data. I. Noachian and Hesperian Periods}, author = {K. L. Tanaka and E.J. Kolb}, year = {2001}, doi = {10.1006/icar.2001.6675}, url = {https://pubs.usgs.gov/publication/70022969}, note = {Source identifier: 70022969} }