@article{NunnerKopp2004,
  author    = {Tamara Nunner and Thilo Kopp},
  title     = {Jordan-Wigner approach to dynamic correlations in spin ladders},
  journal   = {Physical Review B},
  volume    = {69},
  number    = {10},
  pages     = {104419},
  doi       = {10.1103/PhysRevB.69.104419},
  year      = {2004},
}