@Article{SCI:Ber1992c,
  author =    "M. Berzins and R.M. Furzeland",
  title =     "An Adaptive Theta Method for the Solution of Stiff
              and Non-stiff Differential Equations",
  journal =   "Applied Numerical Mathematics",
  volume =    "9",
  pages =     "1--19",
  year =      "1992",
  url =       "http://www.sci.utah.edu/publications/Ber1992c/Berzins_Appnumv9theta.pdf",
}