@Article{SCI:Ber1986a,
  author =    "M. Berzins",
  title =     "A C1 Interpolant for Codes Based on Backward
              Differentiation Formulae",
  journal =   "Applied Numerical Mathematics",
  volume =    "2",
  pages =     "109--118",
  year =      "1986",
  url =       "http://www.sci.utah.edu/publications/Ber1986a/Berzins_Apnumv2C1interp.pdf",
}