Morris, Richard V.; Ruff, Steven W.; Gellert, Ralf; Ming, Douglas W.; Arvidson, Raymond E.; Clark, Benton C.; Golden, D. C.; Siebach, Kirsten; Klingelhöfer, Göstar; Schröder, Christian; Fleischer, Iris; Yen, Albert S.; Squyres, Steven W. Identification of Carbonate-Rich Outcrops on Mars by the Spirit Rover. Science. 2010, 329 (5990): 421–424. Bibcode:2010Sci...329..421M. PMID 20522738. doi:10.1126/science.1189667.
Morris, Richard V.; Ruff, Steven W.; Gellert, Ralf; Ming, Douglas W.; Arvidson, Raymond E.; Clark, Benton C.; Golden, D. C.; Siebach, Kirsten; Klingelhöfer, Göstar; Schröder, Christian; Fleischer, Iris; Yen, Albert S.; Squyres, Steven W. Identification of Carbonate-Rich Outcrops on Mars by the Spirit Rover. Science. 2010, 329 (5990): 421–424. Bibcode:2010Sci...329..421M. PMID 20522738. doi:10.1126/science.1189667.
Morris, Richard V.; Ruff, Steven W.; Gellert, Ralf; Ming, Douglas W.; Arvidson, Raymond E.; Clark, Benton C.; Golden, D. C.; Siebach, Kirsten; Klingelhöfer, Göstar; Schröder, Christian; Fleischer, Iris; Yen, Albert S.; Squyres, Steven W. Identification of Carbonate-Rich Outcrops on Mars by the Spirit Rover. Science. 2010, 329 (5990): 421–424. Bibcode:2010Sci...329..421M. PMID 20522738. doi:10.1126/science.1189667.