@Article{SCI:Pen94b,
  author =    "S.V. Pennington and M. Berzins",
  title =     "New {NAG} Library Software for First-Order Partial
              Differential Equations",
  journal =   "{ACM} Transactions on Mathematical Software",
  volume =    "20",
  number =    "1",
  pages =     "63--99",
  year =      "1994",
  month =     "March",
  url =       "http://www.sci.utah.edu/publications/berzins94/ACMTOMSp63-pennington.pdf",
}