Williams, David; Radebaugh, Jani; Lopes, Rosaly; Stofan, Ellen (2011). "Geomorphologic mapping of the Menrva region of Titan using Cassini RADAR data". Icarus. 212 (2): 744–750. Bibcode:2011Icar..212..744W. doi:10.1016/j.icarus.2011.01.014.
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Williams, David; Radebaugh, Jani; Lopes, Rosaly; Stofan, Ellen (2011). "Geomorphologic mapping of the Menrva region of Titan using Cassini RADAR data". Icarus. 212 (2): 744–750. Bibcode:2011Icar..212..744W. doi:10.1016/j.icarus.2011.01.014.