Hiesinger, H.; et al. (March 20, 2010), "Ages and stratigraphy of lunar mare basalts in Mare Frigoris and other nearside maria based on crater size-frequency distribution measurements", Journal of Geophysical Research, 115 (E3), Bibcode:2010JGRE..115.3003H, doi:10.1029/2009JE003380.
harvard.edu
ui.adsabs.harvard.edu
Hiesinger, H.; et al. (March 20, 2010), "Ages and stratigraphy of lunar mare basalts in Mare Frigoris and other nearside maria based on crater size-frequency distribution measurements", Journal of Geophysical Research, 115 (E3), Bibcode:2010JGRE..115.3003H, doi:10.1029/2009JE003380.
Baum, R.; Whitaker, E. A. (June 2007), "Mare Orientale: The Eastern Sea in the west - Discovery and nomenclature", Journal of the British Astronomical Association, 117 (3): 129–135, Bibcode:2007JBAA..117..129B. See p. 134.
