Smith, David E.; Zuber, Maria T.; Solomon, Sean C.; Phillips, Roger J.; Head, James W.; Garvin, James B.; Banerdt, W. Bruce; Muhleman, Duane O.; Pettengill, Gordon H. (1999-05-28). "The Global Topography of Mars and Implications for Surface Evolution". Science. American Association for the Advancement of Science (AAAS). 284 (5419): 1495–1503. Bibcode:1999Sci...284.1495S. doi:10.1126/science.284.5419.1495. ISSN0036-8075. PMID10348732.
Smith, David E.; Zuber, Maria T. (1998-12-15). "The relationship between MOLA northern hemisphere topography and the 6.1-Mbar atmospheric pressure surface of Mars". Geophysical Research Letters. American Geophysical Union (AGU). 25 (24): 4397–4400. Bibcode:1998GeoRL..25.4397S. doi:10.1029/1998gl900085. ISSN0094-8276.
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Smith, David E.; Zuber, Maria T.; Solomon, Sean C.; Phillips, Roger J.; Head, James W.; Garvin, James B.; Banerdt, W. Bruce; Muhleman, Duane O.; Pettengill, Gordon H. (1999-05-28). "The Global Topography of Mars and Implications for Surface Evolution". Science. American Association for the Advancement of Science (AAAS). 284 (5419): 1495–1503. Bibcode:1999Sci...284.1495S. doi:10.1126/science.284.5419.1495. ISSN0036-8075. PMID10348732.
Smith, David E.; Zuber, Maria T. (1998-12-15). "The relationship between MOLA northern hemisphere topography and the 6.1-Mbar atmospheric pressure surface of Mars". Geophysical Research Letters. American Geophysical Union (AGU). 25 (24): 4397–4400. Bibcode:1998GeoRL..25.4397S. doi:10.1029/1998gl900085. ISSN0094-8276.
Smith, David E.; Zuber, Maria T.; Solomon, Sean C.; Phillips, Roger J.; Head, James W.; Garvin, James B.; Banerdt, W. Bruce; Muhleman, Duane O.; Pettengill, Gordon H. (1999-05-28). "The Global Topography of Mars and Implications for Surface Evolution". Science. American Association for the Advancement of Science (AAAS). 284 (5419): 1495–1503. Bibcode:1999Sci...284.1495S. doi:10.1126/science.284.5419.1495. ISSN0036-8075. PMID10348732.
Smith, David E.; Zuber, Maria T.; Solomon, Sean C.; Phillips, Roger J.; Head, James W.; Garvin, James B.; Banerdt, W. Bruce; Muhleman, Duane O.; Pettengill, Gordon H. (1999-05-28). "The Global Topography of Mars and Implications for Surface Evolution". Science. American Association for the Advancement of Science (AAAS). 284 (5419): 1495–1503. Bibcode:1999Sci...284.1495S. doi:10.1126/science.284.5419.1495. ISSN0036-8075. PMID10348732.
Smith, David E.; Zuber, Maria T. (1998-12-15). "The relationship between MOLA northern hemisphere topography and the 6.1-Mbar atmospheric pressure surface of Mars". Geophysical Research Letters. American Geophysical Union (AGU). 25 (24): 4397–4400. Bibcode:1998GeoRL..25.4397S. doi:10.1029/1998gl900085. ISSN0094-8276.