@Article{SCI:Ber2005d,
  author =    "M. Berzins",
  title =     "Preserving Positivity for Hyperbolic PDEs Using
              Variable-Order Finite Elements with Bounded
              Polynomials",
  journal =   "Applied Numerical Mathematics",
  volume =    "52",
  number =    "2-3",
  pages =     "197--217",
  year =      "2005",
  month =     "February",
  keywords =  "forward problems inverse problems forward
              simulation inverse solutions, finite elements,
              computational pde pdes computational partial
              differential equations",
  url =       "http://www.sci.utah.edu/publications/berzins05/GENhp.pdf",
}