@article{Dehant:4110,
      author        = "Dehant, V. and Park, R. and Dirkx, D. and Iess, L. and
                       Neumann, G. and Turyshev, S. and Van Hoolst, T.",
      title         = "{Survey of capabilities and applications of accurate
                       clocks: directions for planetary science.}",
      year          = "2017",
}