@article{DBLP:journals/siamnum/JinW06,
  author    = {Shi Jin and
               Xin Wen},
  title     = {A Hamiltonian-Preserving Scheme for the Liouville Equation
               of Geometrical Optics with Partial Transmissions and Reflections},
  journal   = {SIAM J. Numerical Analysis},
  volume    = {44},
  number    = {5},
  year      = {2006},
  pages     = {1801-1828},
  ee        = {http://dx.doi.org/10.1137/050631343},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}