@Article{SCI:Gen2014a,
  author =    "M.G. Genton and C.R. Johnson and K. Potter and G.
              Stenchikov and Y. Sun",
  title =     "Surface boxplots",
  journal =   "Stat Journal",
  volume =    "3",
  number =    "1",
  pages =     "1--11",
  year =      "2014",
  url =       "http://www.sci.utah.edu/publications/Gen2014a/Genton_GJPSS2014.pdf",
}