@unpublished{FangXu2009,
  author  = {Daoyuan Fang and Jiang Xu},
  title   = {Asymptotic behavior of solutions to multidimensional nonisentropic hydrodynamic model for semiconductors},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprint},
  number    = {(2005) 02},
  year    = {2009},
}