Nora, Noffke. Ancient Sedimentary Structures in the <3.7 Ga Gillespie Lake Member, Mars, That Resemble Macroscopic Morphology, Spatial Associations, and Temporal Succession in Terrestrial Microbialites. Astrobiology. February 14, 2015, 15 (2): 169–192. Bibcode:2015AsBio..15..169N. PMID 25495393. doi:10.1089/ast.2014.1218.
Nora, Noffke. Ancient Sedimentary Structures in the <3.7 Ga Gillespie Lake Member, Mars, That Resemble Macroscopic Morphology, Spatial Associations, and Temporal Succession in Terrestrial Microbialites. Astrobiology. February 14, 2015, 15 (2): 169–192. Bibcode:2015AsBio..15..169N. PMID 25495393. doi:10.1089/ast.2014.1218.
Nora, Noffke. Ancient Sedimentary Structures in the <3.7 Ga Gillespie Lake Member, Mars, That Resemble Macroscopic Morphology, Spatial Associations, and Temporal Succession in Terrestrial Microbialites. Astrobiology. February 14, 2015, 15 (2): 169–192. Bibcode:2015AsBio..15..169N. PMID 25495393. doi:10.1089/ast.2014.1218.