@article{Drzewiński:1996,
  author  = "A. Drzewiński and R. Dekeyser",
  title   = "Specific heat of the quantum Heisenberg antiferromagnet by a renormalization-group approach",
  journal = "Physical Review B",
  volume  = "Vol. 54",
  number  = "no 22",
  pages   = "875--881",
  year    = "1996",
}