Picqueux, S.; Byrne, S.; Kieffer, H.H.; Titus, T.N.; Hansen, C.J. (2015). “Enumeration of Mars years and seasons since the beginning of telescopic observations”. Icarus251: 332–338. doi:10.1016/j.icarus.2014.12.014.
Withers, P.; Jakosky, B.M. (2017). “Implications of MAVEN's planetographic coordinate system for comparisons to other recent Mars orbital missions”. JGR Space Physics122: 802-807. doi:10.1002/2016JA023470.
Kuchynka, P.; Folkner, W.M.; Konopliv, A.S.; Parker, T.J.; Park, R.S.; Le Maistre, S.; Dehant, V. (2014). “New constraints on Mars rotation determined from radiometric tracking of the Opportunity Mars Exploration Rover”. Icarus229: 340–347. doi:10.1016/j.icarus.2013.11.015.