Dwarf planet Ceres may have vanishing ice volcanoes
American Geophysical Union, February 2, 2017
Ceres' vanishing ice volcanoes: Dwarf planet may havehad 'cryovolcanoes' millions of years ago that flattened out over time, leaving just one behind, Daily Mail
The paper is:
Michael M. Sori, Shane Byrne, M. T. Bland, A. M. Bramson,
A. I. Ermakov, C. W. Hamilton, K. A. Otto, O. Ruesch, and
C. T. Russell, 2017, The vanishing cryovolcanoes of Ceres.
Geophysical Research Letters, 2017; DOI: 10.1002/2016GL072319