? David T. Blewett, Nancy L. Chabot, Brett W. Denevi, Carolyn M. Ernst, James W. Head, Noam R. Izenberg, Scott L. Murchie, Sean C. Solomon, Larry R. Nittler, Timothy J. McCoy, Zhiyong Xiao, David M. H. Baker, Caleb I. Fassett, Sarah E. Braden, Jürgen Oberst, Frank Scholten, Frank Preusker, Debra M. Hurwitz. 2011. Hollows on Mercury: MESSENGER Evidence for Geologically Recent Volatile-Related Activity. Science, 333: 1856–1859.