@article{Drzewiński:1994,
  author  = "A. Drzewiński and J. Van Leeuwen",
  title   = "Renormalization of the Ising model in a transverse field",
  journal = "Physical Review B",
  volume  = "Vol. 49",
  number  = "no 1",
  pages   = "403--408",
  year    = "1994",
}