@article{Abdalla:2004k1,
  author = "Abdalla, M. C.B.  and  Gadelha, Alexandre L.  and  Nedel, Daniel Luiz",
  title = "{General Unitary TFD Formulation for Superstrings}",
  doi = "10.22323/1.013.0032",
  journal = "PoS",
  year = 2004,
  volume = "WC2004",
  pages = "032"
}